fix(federation): address #494 review findings (FED-M2-04)

H1: Replace HS256/HMAC signing with real JWK signing (ES256/RS256/ES384)
    via jose SignJWT. Algorithm derived from JWK kty/crv. Provisioner
    password dropped as signing input; kept only as optional env var for
    PBES2-decrypt path at startup.
H2: Clamp cert TTL to 900s (15 min) in both DTO validator and issueCert().
    Default changed to 300s (5 min). @Max reduced to 15*60.
H3: Real CSR validation via @peculiar/x509: parse PEM, verify self-
    signature, reject weak keys (RSA<2048, bad EC curves), reject MD5/SHA-1.
    New validateCsr() throws CaServiceError code INVALID_CSR on failure.
H4: Replace hardcoded \x24 DER length in federation.tpl with dynamic
    printf "%c" (len ...) encoding. Add UUID-shape validation for grantId
    and subjectUserId in buildOtt() with code INVALID_GRANT_ID.
H5: Load JWK into KeyObject once (lazy, cached). provisionerKeyJson raw
    string not stored as class field. provisionerPassword not stored.

M1: Set JWT sub to CSR CN (extracted via @peculiar/x509) instead of URL.
M2: Add jti: crypto.randomUUID() to OTT claims.
M3: Drop top-level sha claim; keep only step.sha.
M4: extractSerial() throws CaServiceError code CERT_PARSE instead of
    returning 'unknown' on failure.
M5: Set timeout: 5000 on https.RequestOptions + req.setTimeout(5000).
M6: OTT signature verified with jose.jwtVerify in tests. Added real P-256
    CSR test via @peculiar/x509 generator. Added provisionerPassword
    leak-check test.
M7: Constructor validates STEP_CA_URL must be https://.

Verification: typecheck ✓, 385 tests pass (16 new), lint ✓, format ✓.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.env.example

@@ -23,8 +23,8 @@ VALKEY_URL=redis://localhost:6380
 
 
 # ─── Gateway ─────────────────────────────────────────────────────────────────
-# TCP port the NestJS/Fastify gateway listens on (default: 4000)
-GATEWAY_PORT=4000
+# TCP port the NestJS/Fastify gateway listens on (default: 14242)
+GATEWAY_PORT=14242
 
 # Comma-separated list of allowed CORS origins.
 # Must include the web app origin in production.
@@ -37,12 +37,12 @@ GATEWAY_CORS_ORIGIN=http://localhost:3000
 BETTER_AUTH_SECRET=change-me-to-a-random-32-char-string
 
 # Public base URL of the gateway (used by BetterAuth for callback URLs)
-BETTER_AUTH_URL=http://localhost:4000
+BETTER_AUTH_URL=http://localhost:14242
 
 
 # ─── Web App (Next.js) ───────────────────────────────────────────────────────
 # Public gateway URL — accessible from the browser, not just the server.
-NEXT_PUBLIC_GATEWAY_URL=http://localhost:4000
+NEXT_PUBLIC_GATEWAY_URL=http://localhost:14242
 
 
 # ─── OpenTelemetry ───────────────────────────────────────────────────────────
@@ -121,12 +121,12 @@ OTEL_SERVICE_NAME=mosaic-gateway
 # ─── Discord Plugin (optional — set DISCORD_BOT_TOKEN to enable) ─────────────
 # DISCORD_BOT_TOKEN=
 # DISCORD_GUILD_ID=
-# DISCORD_GATEWAY_URL=http://localhost:4000
+# DISCORD_GATEWAY_URL=http://localhost:14242
 
 
 # ─── Telegram Plugin (optional — set TELEGRAM_BOT_TOKEN to enable) ───────────
 # TELEGRAM_BOT_TOKEN=
-# TELEGRAM_GATEWAY_URL=http://localhost:4000
+# TELEGRAM_GATEWAY_URL=http://localhost:14242
 
 
 # ─── SSO Providers (add credentials to enable) ───────────────────────────────

.gitignore

@@ -9,3 +9,6 @@ coverage
 *.tsbuildinfo
 .pnpm-store
 docs/reports/
+
+# Step-CA dev password — real file is gitignored; commit only the .example
+infra/step-ca/dev-password

.npmrc

@@ -1 +1 @@
-@mosaic:registry=https://git.mosaicstack.dev/api/packages/mosaic/npm/
+@mosaicstack:registry=https://git.mosaicstack.dev/api/packages/mosaicstack/npm/

.woodpecker/ci.yml

@@ -59,7 +59,7 @@ steps:
           sleep 1
         done
       # Run migrations (DATABASE_URL is set in environment above)
-      - pnpm --filter @mosaic/db run db:migrate
+      - pnpm --filter @mosaicstack/db run db:migrate
       # Run all tests
       - pnpm test
     depends_on:

.woodpecker/publish.yml

@@ -33,19 +33,62 @@ steps:
       - *enable_pnpm
       # Configure auth for Gitea npm registry
       - |
-        echo "//git.mosaicstack.dev/api/packages/mosaic/npm/:_authToken=$NPM_TOKEN" > ~/.npmrc
-        echo "@mosaic:registry=https://git.mosaicstack.dev/api/packages/mosaic/npm/" >> ~/.npmrc
-      # Publish all non-private packages (--no-git-checks skips dirty/branch checks in CI)
-      # --filter excludes private apps (gateway, web) and the root
-      - >
-        pnpm --filter "@mosaic/*"
-        --filter "!@mosaic/gateway"
-        --filter "!@mosaic/web"
-        publish --no-git-checks --access public
-        || echo "[publish] Some packages may already exist at this version — continuing"
+        echo "//git.mosaicstack.dev/api/packages/mosaicstack/npm/:_authToken=$NPM_TOKEN" > ~/.npmrc
+        echo "@mosaicstack:registry=https://git.mosaicstack.dev/api/packages/mosaicstack/npm/" >> ~/.npmrc
+      # Publish non-private packages to Gitea.
+      #
+      # The only publish failure we tolerate is "version already exists" —
+      # that legitimately happens when only some packages were bumped in
+      # the merge. Any other failure (registry 404, auth error, network
+      # error) MUST fail the pipeline loudly: the previous
+      # `|| echo "... continuing"` fallback silently hid a 404 from the
+      # Gitea org rename and caused every @mosaicstack/* publish to fall
+      # on the floor while CI still reported green.
+      - |
+        # Portable sh (Alpine ash) — avoid bashisms like PIPESTATUS.
+        set +e
+        pnpm --filter "@mosaicstack/*" --filter "!@mosaicstack/web" publish --no-git-checks --access public >/tmp/publish.log 2>&1
+        EXIT=$?
+        set -e
+        cat /tmp/publish.log
+        if [ "$EXIT" -eq 0 ]; then
+          echo "[publish] all packages published successfully"
+          exit 0
+        fi
+        # Hard registry / auth / network errors → fatal. Match npm's own
+        # error lines specifically to avoid false positives on arbitrary
+        # log text that happens to contain "E404" etc.
+        if grep -qE "npm (error|ERR!) code (E404|E401|ENEEDAUTH|ECONNREFUSED|ETIMEDOUT|ENOTFOUND)" /tmp/publish.log; then
+          echo "[publish] FATAL: registry/auth/network error detected — failing pipeline" >&2
+          exit 1
+        fi
+        # Only tolerate the explicit "version already published" case.
+        # npm returns this as E403 with body "You cannot publish over..."
+        # or EPUBLISHCONFLICT depending on version.
+        if grep -qE "EPUBLISHCONFLICT|You cannot publish over|previously published" /tmp/publish.log; then
+          echo "[publish] some packages already at this version — continuing (non-fatal)"
+          exit 0
+        fi
+        echo "[publish] FATAL: publish failed with unrecognized error — failing pipeline" >&2
+        exit 1
     depends_on:
       - build
 
+  # TODO: Uncomment when ready to publish to npmjs.org
+  # publish-npmjs:
+  #   image: *node_image
+  #   environment:
+  #     NPM_TOKEN:
+  #       from_secret: npmjs_token
+  #   commands:
+  #     - *enable_pnpm
+  #     - apk add --no-cache jq bash
+  #     - bash scripts/publish-npmjs.sh
+  #   depends_on:
+  #     - build
+  #   when:
+  #     - event: [tag]
+
   build-gateway:
     image: gcr.io/kaniko-project/executor:debug
     environment:
@@ -60,12 +103,12 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo "{\"auths\":{\"git.mosaicstack.dev\":{\"username\":\"$REGISTRY_USER\",\"password\":\"$REGISTRY_PASS\"}}}" > /kaniko/.docker/config.json
       - |
-        DESTINATIONS="--destination git.mosaicstack.dev/mosaic/mosaic-stack/gateway:sha-${CI_COMMIT_SHA:0:7}"
+        DESTINATIONS="--destination git.mosaicstack.dev/mosaicstack/stack/gateway:sha-${CI_COMMIT_SHA:0:7}"
         if [ "$CI_COMMIT_BRANCH" = "main" ]; then
-          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaic/mosaic-stack/gateway:latest"
+          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaicstack/stack/gateway:latest"
         fi
         if [ -n "$CI_COMMIT_TAG" ]; then
-          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaic/mosaic-stack/gateway:$CI_COMMIT_TAG"
+          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaicstack/stack/gateway:$CI_COMMIT_TAG"
         fi
         /kaniko/executor --context . --dockerfile docker/gateway.Dockerfile $DESTINATIONS
     depends_on:
@@ -85,12 +128,12 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo "{\"auths\":{\"git.mosaicstack.dev\":{\"username\":\"$REGISTRY_USER\",\"password\":\"$REGISTRY_PASS\"}}}" > /kaniko/.docker/config.json
       - |
-        DESTINATIONS="--destination git.mosaicstack.dev/mosaic/mosaic-stack/web:sha-${CI_COMMIT_SHA:0:7}"
+        DESTINATIONS="--destination git.mosaicstack.dev/mosaicstack/stack/web:sha-${CI_COMMIT_SHA:0:7}"
         if [ "$CI_COMMIT_BRANCH" = "main" ]; then
-          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaic/mosaic-stack/web:latest"
+          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaicstack/stack/web:latest"
         fi
         if [ -n "$CI_COMMIT_TAG" ]; then
-          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaic/mosaic-stack/web:$CI_COMMIT_TAG"
+          DESTINATIONS="$DESTINATIONS --destination git.mosaicstack.dev/mosaicstack/stack/web:$CI_COMMIT_TAG"
         fi
         /kaniko/executor --context . --dockerfile docker/web.Dockerfile $DESTINATIONS
     depends_on:

AGENTS.md

@@ -21,11 +21,11 @@ Mosaic Stack is a self-hosted, multi-user AI agent platform. TypeScript monorepo
 | `apps/web`         | Next.js dashboard               | React 19, Tailwind               |
 | `packages/types`   | Shared TypeScript contracts     | class-validator                  |
 | `packages/db`      | Drizzle ORM schema + migrations | drizzle-orm, postgres            |
-| `packages/auth`    | BetterAuth configuration        | better-auth, @mosaic/db          |
-| `packages/brain`   | Data layer (PG-backed)          | @mosaic/db                       |
+| `packages/auth`    | BetterAuth configuration        | better-auth, @mosaicstack/db     |
+| `packages/brain`   | Data layer (PG-backed)          | @mosaicstack/db                  |
 | `packages/queue`   | Valkey task queue + MCP         | ioredis                          |
-| `packages/coord`   | Mission coordination            | @mosaic/queue                    |
-| `packages/cli`     | Unified CLI + Pi TUI            | Ink, Pi SDK                      |
+| `packages/coord`   | Mission coordination            | @mosaicstack/queue               |
+| `packages/mosaic`  | Unified `mosaic` CLI + TUI      | Ink, Pi SDK, commander           |
 | `plugins/discord`  | Discord channel plugin          | discord.js                       |
 | `plugins/telegram` | Telegram channel plugin         | Telegraf                         |
 
@@ -33,9 +33,9 @@ Mosaic Stack is a self-hosted, multi-user AI agent platform. TypeScript monorepo
 
 1. Gateway is the single API surface — all clients connect through it
 2. Pi SDK is ESM-only — gateway and CLI must use ESM
-3. Socket.IO typed events defined in `@mosaic/types` enforce compile-time contracts
+3. Socket.IO typed events defined in `@mosaicstack/types` enforce compile-time contracts
 4. OTEL auto-instrumentation loads before NestJS bootstrap
-5. BetterAuth manages auth tables; schema defined in `@mosaic/db`
+5. BetterAuth manages auth tables; schema defined in `@mosaicstack/db`
 6. Docker Compose provides PG (5433), Valkey (6380), OTEL Collector (4317/4318), Jaeger (16686)
 7. Explicit `@Inject()` decorators required in NestJS (tsx/esbuild doesn't emit decorator metadata)
 
@@ -59,9 +59,9 @@ pnpm typecheck && pnpm lint && pnpm format:check  # Quality gates
 The `agent` column specifies the required model for each task. **This is set at task creation by the orchestrator and must not be changed by workers.**
 
 | Value     | When to use                                                 | Budget                     |
-| -------- | ----------------------------------------------------------- | -------------------------- |
+| --------- | ----------------------------------------------------------- | -------------------------- |
 | `codex`   | All coding tasks (default for implementation)               | OpenAI credits — preferred |
-| `glm-5`  | Cost-sensitive coding where Codex is unavailable            | Z.ai credits               |
+| `glm-5.1` | Cost-sensitive coding where Codex is unavailable            | Z.ai credits               |
 | `haiku`   | Review gates, verify tasks, status checks, docs-only        | Cheapest Claude tier       |
 | `sonnet`  | Complex planning, multi-file reasoning, architecture review | Claude quota               |
 | `opus`    | Major cross-cutting architecture decisions ONLY             | Most expensive — minimize  |

CLAUDE.md

@@ -10,7 +10,7 @@ Self-hosted, multi-user AI agent platform. TypeScript monorepo.
 - **Web**: Next.js 16 + React 19 (`apps/web`)
 - **ORM**: Drizzle ORM + PostgreSQL 17 + pgvector (`packages/db`)
 - **Auth**: BetterAuth (`packages/auth`)
-- **Agent**: Pi SDK (`packages/agent`, `packages/cli`)
+- **Agent**: Pi SDK (`packages/agent`, `packages/mosaic`)
 - **Queue**: Valkey 8 (`packages/queue`)
 - **Build**: pnpm workspaces + Turborepo
 - **CI**: Woodpecker CI
@@ -26,13 +26,13 @@ pnpm test             # Vitest (all packages)
 pnpm build            # Build all packages
 
 # Database
-pnpm --filter @mosaic/db db:push      # Push schema to PG (dev)
-pnpm --filter @mosaic/db db:generate  # Generate migrations
-pnpm --filter @mosaic/db db:migrate   # Run migrations
+pnpm --filter @mosaicstack/db db:push      # Push schema to PG (dev)
+pnpm --filter @mosaicstack/db db:generate  # Generate migrations
+pnpm --filter @mosaicstack/db db:migrate   # Run migrations
 
 # Dev
 docker compose up -d                  # Start PG, Valkey, OTEL, Jaeger
-pnpm --filter @mosaic/gateway exec tsx src/main.ts  # Start gateway
+pnpm --filter @mosaicstack/gateway exec tsx src/main.ts  # Start gateway
 ```
 
 ## Conventions

README.md

@@ -7,26 +7,39 @@ Mosaic gives you a unified launcher for Claude Code, Codex, OpenCode, and Pi —
 ## Quick Install
 
 ```bash
-bash <(curl -fsSL https://git.mosaicstack.dev/mosaic/mosaic-stack/raw/branch/main/tools/install.sh)
+curl -fsSL https://mosaicstack.dev/install.sh | bash
+```
+
+Or use the direct URL:
+
+```bash
+bash <(curl -fsSL https://git.mosaicstack.dev/mosaicstack/stack/raw/branch/main/tools/install.sh)
+```
+
+The installer auto-launches the setup wizard, which walks you through gateway install and verification. Flags for non-interactive use:
+
+```bash
+bash <(curl -fsSL …) --yes               # Accept all defaults
+bash <(curl -fsSL …) --yes --no-auto-launch  # Install only, skip wizard
 ```
 
 This installs both components:
 
 | Component               | What                                                             | Where                |
-| --------------- | ----------------------------------------------------- | -------------------- |
+| ----------------------- | ---------------------------------------------------------------- | -------------------- |
 | **Framework**           | Bash launcher, guides, runtime configs, tools, skills            | `~/.config/mosaic/`  |
-| **@mosaic/cli** | TUI, gateway client, wizard, auto-updater             | `~/.npm-global/bin/` |
+| **@mosaicstack/mosaic** | Unified `mosaic` CLI — TUI, gateway client, wizard, auto-updater | `~/.npm-global/bin/` |
 
-After install, set up your agent identity:
+After install, the wizard runs automatically or you can invoke it manually:
 
 ```bash
-mosaic init          # Interactive wizard
+mosaic wizard        # Full guided setup (gateway install → verify)
 ```
 
 ### Requirements
 
 - Node.js ≥ 20
-- npm (for global @mosaic/cli install)
+- npm (for global @mosaicstack/mosaic install)
 - One or more runtimes: [Claude Code](https://docs.anthropic.com/en/docs/claude-code), [Codex](https://github.com/openai/codex), [OpenCode](https://opencode.ai), or [Pi](https://github.com/mariozechner/pi-coding-agent)
 
 ## Usage
@@ -49,10 +62,34 @@ The launcher verifies your config, checks for `SOUL.md`, injects your `AGENTS.md
 
 ```bash
 mosaic tui                   # Interactive TUI connected to the gateway
-mosaic login                 # Authenticate with a gateway instance
+mosaic gateway login         # Authenticate with a gateway instance
 mosaic sessions list         # List active agent sessions
 ```
 
+### Gateway Management
+
+```bash
+mosaic gateway install       # Install and configure the gateway service
+mosaic gateway verify        # Post-install health check
+mosaic gateway login         # Authenticate and store a session token
+mosaic gateway config rotate-token    # Rotate your API token
+mosaic gateway config recover-token  # Recover a token via BetterAuth cookie
+```
+
+If you already have a gateway account but no token, use `mosaic gateway config recover-token` to retrieve one without recreating your account.
+
+### Configuration
+
+Mosaic supports three storage tiers: `local` (PGlite, single-host), `standalone` (PostgreSQL, single-host), and `federated` (PostgreSQL + pgvector + Valkey, multi-host). See [Federated Tier Setup](docs/federation/SETUP.md) for multi-user and production deployments, or [Migrating to Federated](docs/guides/migrate-tier.md) to upgrade from existing tiers.
+
+```bash
+mosaic config show           # Print full config as JSON
+mosaic config get <key>      # Read a specific key
+mosaic config set <key> <val># Write a key
+mosaic config edit           # Open config in $EDITOR
+mosaic config path           # Print config file path
+```
+
 ### Management
 
 ```bash
@@ -65,6 +102,80 @@ mosaic coord init            # Initialize a new orchestration mission
 mosaic prdy init             # Create a PRD via guided session
 ```
 
+### Sub-package Commands
+
+Each Mosaic sub-package exposes its API surface through the unified CLI:
+
+```bash
+# User management
+mosaic auth users list
+mosaic auth users create
+mosaic auth sso
+
+# Agent brain (projects, missions, tasks)
+mosaic brain projects
+mosaic brain missions
+mosaic brain tasks
+mosaic brain conversations
+
+# Agent forge pipeline
+mosaic forge run
+mosaic forge status
+mosaic forge resume
+mosaic forge personas
+
+# Structured logging
+mosaic log tail
+mosaic log search
+mosaic log export
+mosaic log level
+
+# MACP protocol
+mosaic macp tasks
+mosaic macp submit
+mosaic macp gate
+mosaic macp events
+
+# Agent memory
+mosaic memory search
+mosaic memory stats
+mosaic memory insights
+mosaic memory preferences
+
+# Task queue (Valkey)
+mosaic queue list
+mosaic queue stats
+mosaic queue pause
+mosaic queue resume
+mosaic queue jobs
+mosaic queue drain
+
+# Object storage
+mosaic storage status
+mosaic storage tier
+mosaic storage export
+mosaic storage import
+mosaic storage migrate
+```
+
+### Telemetry
+
+```bash
+# Local observability (OTEL / Jaeger)
+mosaic telemetry local status
+mosaic telemetry local tail
+mosaic telemetry local jaeger
+
+# Remote telemetry (dry-run by default)
+mosaic telemetry status
+mosaic telemetry opt-in
+mosaic telemetry opt-out
+mosaic telemetry test
+mosaic telemetry upload        # Dry-run unless opted in
+```
+
+Consent state is persisted in config. Remote upload is a no-op until you run `mosaic telemetry opt-in`.
+
 ## Development
 
 ### Prerequisites
@@ -76,8 +187,8 @@ mosaic prdy init             # Create a PRD via guided session
 ### Setup
 
 ```bash
-git clone git@git.mosaicstack.dev:mosaic/mosaic-stack.git
-cd mosaic-stack
+git clone git@git.mosaicstack.dev:mosaicstack/stack.git
+cd stack
 
 # Start infrastructure (Postgres, Valkey, Jaeger)
 docker compose up -d
@@ -86,7 +197,7 @@ docker compose up -d
 pnpm install
 
 # Run migrations
-pnpm --filter @mosaic/db run db:migrate
+pnpm --filter @mosaicstack/db run db:migrate
 
 # Start all services in dev mode
 pnpm dev
@@ -126,13 +237,12 @@ npm packages are published to the Gitea package registry on main merges.
 ## Architecture
 
 ```
-mosaic-stack/
+stack/
 ├── apps/
 │   ├── gateway/             NestJS API + WebSocket hub (Fastify, Socket.IO, OTEL)
 │   └── web/                 Next.js dashboard (React 19, Tailwind)
 ├── packages/
-│   ├── cli/                 Mosaic CLI — TUI, gateway client, wizard
-│   ├── mosaic/              Framework — wizard, runtime detection, update checker
+│   ├── mosaic/              Unified CLI — TUI, gateway client, wizard, sub-package commands
 │   ├── types/               Shared TypeScript contracts (Socket.IO typed events)
 │   ├── db/                  Drizzle ORM schema + migrations (pgvector)
 │   ├── auth/                BetterAuth configuration
@@ -153,7 +263,7 @@ mosaic-stack/
 │   ├── macp/                OpenClaw MACP runtime plugin
 │   └── mosaic-framework/    OpenClaw framework injection plugin
 ├── tools/
-│   └── install.sh           Unified installer (framework + npm CLI)
+│   └── install.sh           Unified installer (framework + npm CLI, --yes / --no-auto-launch)
 ├── scripts/agent/           Agent session lifecycle scripts
 ├── docker-compose.yml       Dev infrastructure
 └── .woodpecker/             CI pipeline configs
@@ -163,7 +273,7 @@ mosaic-stack/
 
 - **Gateway is the single API surface** — all clients (TUI, web, Discord, Telegram) connect through it
 - **ESM everywhere** — `"type": "module"`, `.js` extensions in imports, NodeNext resolution
-- **Socket.IO typed events** — defined in `@mosaic/types`, enforced at compile time
+- **Socket.IO typed events** — defined in `@mosaicstack/types`, enforced at compile time
 - **OTEL auto-instrumentation** — loads before NestJS bootstrap
 - **Explicit `@Inject()` decorators** — required since tsx/esbuild doesn't emit decorator metadata
 
@@ -200,7 +310,13 @@ Each stage has a dispatch mode (`exec` for research/review, `yolo` for coding),
 Run the installer again — it handles upgrades automatically:
 
 ```bash
-bash <(curl -fsSL https://git.mosaicstack.dev/mosaic/mosaic-stack/raw/branch/main/tools/install.sh)
+curl -fsSL https://mosaicstack.dev/install.sh | bash
+```
+
+Or use the direct URL:
+
+```bash
+bash <(curl -fsSL https://git.mosaicstack.dev/mosaicstack/stack/raw/branch/main/tools/install.sh)
 ```
 
 Or use the CLI:
@@ -219,6 +335,8 @@ bash tools/install.sh --check        # Version check only
 bash tools/install.sh --framework       # Framework only (skip npm CLI)
 bash tools/install.sh --cli             # npm CLI only (skip framework)
 bash tools/install.sh --ref v1.0        # Install from a specific git ref
+bash tools/install.sh --yes             # Non-interactive, accept all defaults
+bash tools/install.sh --no-auto-launch  # Skip auto-launch of wizard
 ```
 
 ## Contributing

apps/gateway/package.json

@@ -1,9 +1,23 @@
 {
-  "name": "@mosaic/gateway",
-  "version": "0.0.2",
-  "private": true,
+  "name": "@mosaicstack/gateway",
+  "version": "0.0.6",
+  "repository": {
+    "type": "git",
+    "url": "https://git.mosaicstack.dev/mosaicstack/stack.git",
+    "directory": "apps/gateway"
+  },
   "type": "module",
   "main": "dist/main.js",
+  "bin": {
+    "mosaic-gateway": "dist/main.js"
+  },
+  "files": [
+    "dist"
+  ],
+  "publishConfig": {
+    "registry": "https://git.mosaicstack.dev/api/packages/mosaicstack/npm/",
+    "access": "public"
+  },
   "scripts": {
     "build": "tsc",
     "dev": "tsx watch src/main.ts",
@@ -14,34 +28,35 @@
   "dependencies": {
     "@anthropic-ai/sdk": "^0.80.0",
     "@fastify/helmet": "^13.0.2",
-    "@mariozechner/pi-ai": "~0.57.1",
-    "@mariozechner/pi-coding-agent": "~0.57.1",
+    "@mariozechner/pi-ai": "^0.65.0",
+    "@mariozechner/pi-coding-agent": "^0.65.0",
     "@modelcontextprotocol/sdk": "^1.27.1",
-    "@mosaic/auth": "workspace:^",
-    "@mosaic/brain": "workspace:^",
-    "@mosaic/config": "workspace:^",
-    "@mosaic/coord": "workspace:^",
-    "@mosaic/db": "workspace:^",
-    "@mosaic/discord-plugin": "workspace:^",
-    "@mosaic/log": "workspace:^",
-    "@mosaic/memory": "workspace:^",
-    "@mosaic/queue": "workspace:^",
-    "@mosaic/storage": "workspace:^",
-    "@mosaic/telegram-plugin": "workspace:^",
-    "@mosaic/types": "workspace:^",
+    "@mosaicstack/auth": "workspace:^",
+    "@mosaicstack/brain": "workspace:^",
+    "@mosaicstack/config": "workspace:^",
+    "@mosaicstack/coord": "workspace:^",
+    "@mosaicstack/db": "workspace:^",
+    "@mosaicstack/discord-plugin": "workspace:^",
+    "@mosaicstack/log": "workspace:^",
+    "@mosaicstack/memory": "workspace:^",
+    "@mosaicstack/queue": "workspace:^",
+    "@mosaicstack/storage": "workspace:^",
+    "@mosaicstack/telegram-plugin": "workspace:^",
+    "@mosaicstack/types": "workspace:^",
     "@nestjs/common": "^11.0.0",
     "@nestjs/core": "^11.0.0",
     "@nestjs/platform-fastify": "^11.0.0",
     "@nestjs/platform-socket.io": "^11.0.0",
     "@nestjs/throttler": "^6.5.0",
     "@nestjs/websockets": "^11.0.0",
-    "@opentelemetry/auto-instrumentations-node": "^0.71.0",
+    "@opentelemetry/auto-instrumentations-node": "^0.72.0",
     "@opentelemetry/exporter-metrics-otlp-http": "^0.213.0",
     "@opentelemetry/exporter-trace-otlp-http": "^0.213.0",
     "@opentelemetry/resources": "^2.6.0",
     "@opentelemetry/sdk-metrics": "^2.6.0",
     "@opentelemetry/sdk-node": "^0.213.0",
     "@opentelemetry/semantic-conventions": "^1.40.0",
+    "@peculiar/x509": "^2.0.0",
     "@sinclair/typebox": "^0.34.48",
     "better-auth": "^1.5.5",
     "bullmq": "^5.71.0",
@@ -49,8 +64,11 @@
     "class-validator": "^0.15.1",
     "dotenv": "^17.3.1",
     "fastify": "^5.0.0",
+    "ioredis": "^5.10.0",
+    "jose": "^6.2.2",
     "node-cron": "^4.2.1",
     "openai": "^6.32.0",
+    "postgres": "^3.4.8",
     "reflect-metadata": "^0.2.0",
     "rxjs": "^7.8.0",
     "socket.io": "^4.8.0",
@@ -58,11 +76,17 @@
     "zod": "^4.3.6"
   },
   "devDependencies": {
+    "@nestjs/testing": "^11.1.18",
+    "@swc/core": "^1.15.24",
+    "@swc/helpers": "^0.5.21",
     "@types/node": "^22.0.0",
     "@types/node-cron": "^3.0.11",
+    "@types/supertest": "^7.2.0",
     "@types/uuid": "^10.0.0",
+    "supertest": "^7.2.2",
     "tsx": "^4.0.0",
     "typescript": "^5.8.0",
+    "unplugin-swc": "^1.5.9",
     "vitest": "^2.0.0"
   }
 }

apps/gateway/src/__tests__/conversation-persistence.test.ts

@@ -12,7 +12,7 @@ import { BadRequestException, NotFoundException } from '@nestjs/common';
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import type { ConversationHistoryMessage } from '../agent/agent.service.js';
 import { ConversationsController } from '../conversations/conversations.controller.js';
-import type { Message } from '@mosaic/brain';
+import type { Message } from '@mosaicstack/brain';
 
 // ---------------------------------------------------------------------------
 // Shared test data

apps/gateway/src/__tests__/cross-user-isolation.test.ts

@@ -18,13 +18,13 @@
  */
 
 import { afterAll, beforeAll, beforeEach, describe, expect, it } from 'vitest';
-import { createDb } from '@mosaic/db';
-import { createConversationsRepo } from '@mosaic/brain';
-import { createAgentsRepo } from '@mosaic/brain';
-import { createPreferencesRepo, createInsightsRepo } from '@mosaic/memory';
-import { users, conversations, messages, agents, preferences, insights } from '@mosaic/db';
-import { eq } from '@mosaic/db';
-import type { DbHandle } from '@mosaic/db';
+import { createDb } from '@mosaicstack/db';
+import { createConversationsRepo } from '@mosaicstack/brain';
+import { createAgentsRepo } from '@mosaicstack/brain';
+import { createPreferencesRepo, createInsightsRepo } from '@mosaicstack/memory';
+import { users, conversations, messages, agents, preferences, insights } from '@mosaicstack/db';
+import { eq } from '@mosaicstack/db';
+import type { DbHandle } from '@mosaicstack/db';
 
 // ─── Fixed IDs so the afterAll cleanup is deterministic ──────────────────────
 

apps/gateway/src/__tests__/integration/federated-boot.pg-unreachable.integration.test.ts

@@ -0,0 +1,64 @@
+/**
+ * Test B — Gateway boot refuses (fail-fast) when PG is unreachable.
+ *
+ * Prereq: docker compose -f docker-compose.federated.yml --profile federated up -d
+ *         (Valkey must be running; only PG is intentionally misconfigured.)
+ * Run:    FEDERATED_INTEGRATION=1 pnpm --filter @mosaicstack/gateway test src/__tests__/integration/federated-boot.pg-unreachable.integration.test.ts
+ *
+ * Skipped when FEDERATED_INTEGRATION !== '1'.
+ */
+
+import net from 'node:net';
+import { beforeAll, describe, expect, it } from 'vitest';
+import { TierDetectionError, detectAndAssertTier } from '@mosaicstack/storage';
+
+const run = process.env['FEDERATED_INTEGRATION'] === '1';
+
+const VALKEY_URL = 'redis://localhost:6380';
+
+/**
+ * Reserves a guaranteed-closed port at runtime by binding to an ephemeral OS
+ * port (port 0) and immediately releasing it. The OS will not reassign the
+ * port during the TIME_WAIT window, so it remains closed for the duration of
+ * this test.
+ */
+async function reserveClosedPort(): Promise<number> {
+  return new Promise((resolve, reject) => {
+    const server = net.createServer();
+    server.listen(0, '127.0.0.1', () => {
+      const addr = server.address();
+      if (typeof addr !== 'object' || !addr) return reject(new Error('no addr'));
+      const port = addr.port;
+      server.close(() => resolve(port));
+    });
+    server.on('error', reject);
+  });
+}
+
+describe.skipIf(!run)('federated boot — PG unreachable', () => {
+  let badPgUrl: string;
+
+  beforeAll(async () => {
+    const closedPort = await reserveClosedPort();
+    badPgUrl = `postgresql://mosaic:mosaic@localhost:${closedPort}/mosaic`;
+  });
+
+  it('detectAndAssertTier throws TierDetectionError with service: postgres when PG is down', async () => {
+    const brokenConfig = {
+      tier: 'federated' as const,
+      storage: {
+        type: 'postgres' as const,
+        url: badPgUrl,
+        enableVector: true,
+      },
+      queue: {
+        type: 'bullmq',
+        url: VALKEY_URL,
+      },
+    };
+
+    await expect(detectAndAssertTier(brokenConfig)).rejects.toSatisfy(
+      (err: unknown) => err instanceof TierDetectionError && err.service === 'postgres',
+    );
+  }, 10_000);
+});

apps/gateway/src/__tests__/integration/federated-boot.success.integration.test.ts

@@ -0,0 +1,50 @@
+/**
+ * Test A — Gateway boot succeeds when federated services are up.
+ *
+ * Prereq: docker compose -f docker-compose.federated.yml --profile federated up -d
+ * Run:    FEDERATED_INTEGRATION=1 pnpm --filter @mosaicstack/gateway test src/__tests__/integration/federated-boot.success.integration.test.ts
+ *
+ * Skipped when FEDERATED_INTEGRATION !== '1'.
+ */
+
+import postgres from 'postgres';
+import { afterAll, describe, expect, it } from 'vitest';
+import { detectAndAssertTier } from '@mosaicstack/storage';
+
+const run = process.env['FEDERATED_INTEGRATION'] === '1';
+
+const PG_URL = 'postgresql://mosaic:mosaic@localhost:5433/mosaic';
+const VALKEY_URL = 'redis://localhost:6380';
+
+const federatedConfig = {
+  tier: 'federated' as const,
+  storage: {
+    type: 'postgres' as const,
+    url: PG_URL,
+    enableVector: true,
+  },
+  queue: {
+    type: 'bullmq',
+    url: VALKEY_URL,
+  },
+};
+
+describe.skipIf(!run)('federated boot — success path', () => {
+  let sql: ReturnType<typeof postgres> | undefined;
+
+  afterAll(async () => {
+    if (sql) {
+      await sql.end({ timeout: 2 }).catch(() => {});
+    }
+  });
+
+  it('detectAndAssertTier resolves without throwing when federated services are up', async () => {
+    await expect(detectAndAssertTier(federatedConfig)).resolves.toBeUndefined();
+  }, 10_000);
+
+  it('pgvector extension is registered (pg_extension row exists)', async () => {
+    sql = postgres(PG_URL, { max: 1, connect_timeout: 5, idle_timeout: 5 });
+    const rows = await sql`SELECT * FROM pg_extension WHERE extname = 'vector'`;
+    expect(rows).toHaveLength(1);
+  }, 10_000);
+});

apps/gateway/src/__tests__/integration/federated-pgvector.integration.test.ts

@@ -0,0 +1,43 @@
+/**
+ * Test C — pgvector extension is functional end-to-end.
+ *
+ * Creates a temp table with a vector(3) column, inserts a row, and queries it
+ * back — confirming the extension is not just registered but operational.
+ *
+ * Prereq: docker compose -f docker-compose.federated.yml --profile federated up -d
+ * Run:    FEDERATED_INTEGRATION=1 pnpm --filter @mosaicstack/gateway test src/__tests__/integration/federated-pgvector.integration.test.ts
+ *
+ * Skipped when FEDERATED_INTEGRATION !== '1'.
+ */
+
+import postgres from 'postgres';
+import { afterAll, describe, expect, it } from 'vitest';
+
+const run = process.env['FEDERATED_INTEGRATION'] === '1';
+
+const PG_URL = 'postgresql://mosaic:mosaic@localhost:5433/mosaic';
+
+let sql: ReturnType<typeof postgres> | undefined;
+
+afterAll(async () => {
+  if (sql) {
+    await sql.end({ timeout: 2 }).catch(() => {});
+  }
+});
+
+describe.skipIf(!run)('federated pgvector — functional end-to-end', () => {
+  it('vector ops round-trip: INSERT [1,2,3] and SELECT returns [1,2,3]', async () => {
+    sql = postgres(PG_URL, { max: 1, connect_timeout: 5, idle_timeout: 5 });
+
+    await sql`CREATE TEMP TABLE t (id int, embedding vector(3))`;
+    await sql`INSERT INTO t VALUES (1, '[1,2,3]')`;
+    const rows = await sql`SELECT embedding FROM t`;
+
+    expect(rows).toHaveLength(1);
+    // The postgres driver returns vector columns as strings like '[1,2,3]'.
+    // Normalise by parsing the string representation.
+    const raw = rows[0]?.['embedding'] as string;
+    const parsed = JSON.parse(raw) as number[];
+    expect(parsed).toEqual([1, 2, 3]);
+  }, 10_000);
+});

apps/gateway/src/admin/admin-health.controller.ts

@@ -1,6 +1,6 @@
 import { Controller, Get, Inject, UseGuards } from '@nestjs/common';
-import { sql, type Db } from '@mosaic/db';
-import { createQueue } from '@mosaic/queue';
+import { sql, type Db } from '@mosaicstack/db';
+import { createQueue } from '@mosaicstack/queue';
 import { DB } from '../database/database.module.js';
 import { AgentService } from '../agent/agent.service.js';
 import { ProviderService } from '../agent/provider.service.js';

apps/gateway/src/admin/admin-tokens.controller.ts

@@ -0,0 +1,90 @@
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  HttpCode,
+  HttpStatus,
+  Inject,
+  Param,
+  Post,
+  UseGuards,
+} from '@nestjs/common';
+import { randomBytes, createHash } from 'node:crypto';
+import { eq, type Db, adminTokens } from '@mosaicstack/db';
+import { v4 as uuid } from 'uuid';
+import { DB } from '../database/database.module.js';
+import { AdminGuard } from './admin.guard.js';
+import { CurrentUser } from '../auth/current-user.decorator.js';
+import type {
+  CreateTokenDto,
+  TokenCreatedDto,
+  TokenDto,
+  TokenListDto,
+} from './admin-tokens.dto.js';
+
+function hashToken(plaintext: string): string {
+  return createHash('sha256').update(plaintext).digest('hex');
+}
+
+function toTokenDto(row: typeof adminTokens.$inferSelect): TokenDto {
+  return {
+    id: row.id,
+    label: row.label,
+    scope: row.scope,
+    expiresAt: row.expiresAt?.toISOString() ?? null,
+    lastUsedAt: row.lastUsedAt?.toISOString() ?? null,
+    createdAt: row.createdAt.toISOString(),
+  };
+}
+
+@Controller('api/admin/tokens')
+@UseGuards(AdminGuard)
+export class AdminTokensController {
+  constructor(@Inject(DB) private readonly db: Db) {}
+
+  @Post()
+  async create(
+    @Body() dto: CreateTokenDto,
+    @CurrentUser() user: { id: string },
+  ): Promise<TokenCreatedDto> {
+    const plaintext = randomBytes(32).toString('hex');
+    const tokenHash = hashToken(plaintext);
+    const id = uuid();
+
+    const expiresAt = dto.expiresInDays
+      ? new Date(Date.now() + dto.expiresInDays * 24 * 60 * 60 * 1000)
+      : null;
+
+    const [row] = await this.db
+      .insert(adminTokens)
+      .values({
+        id,
+        userId: user.id,
+        tokenHash,
+        label: dto.label ?? 'CLI token',
+        scope: dto.scope ?? 'admin',
+        expiresAt,
+      })
+      .returning();
+
+    return { ...toTokenDto(row!), plaintext };
+  }
+
+  @Get()
+  async list(@CurrentUser() user: { id: string }): Promise<TokenListDto> {
+    const rows = await this.db
+      .select()
+      .from(adminTokens)
+      .where(eq(adminTokens.userId, user.id))
+      .orderBy(adminTokens.createdAt);
+
+    return { tokens: rows.map(toTokenDto), total: rows.length };
+  }
+
+  @Delete(':id')
+  @HttpCode(HttpStatus.NO_CONTENT)
+  async revoke(@Param('id') id: string, @CurrentUser() _user: { id: string }): Promise<void> {
+    await this.db.delete(adminTokens).where(eq(adminTokens.id, id));
+  }
+}

apps/gateway/src/admin/admin-tokens.dto.ts

@@ -0,0 +1,33 @@
+import { IsString, IsOptional, IsInt, Min } from 'class-validator';
+
+export class CreateTokenDto {
+  @IsString()
+  label!: string;
+
+  @IsOptional()
+  @IsString()
+  scope?: string;
+
+  @IsOptional()
+  @IsInt()
+  @Min(1)
+  expiresInDays?: number;
+}
+
+export interface TokenDto {
+  id: string;
+  label: string;
+  scope: string;
+  expiresAt: string | null;
+  lastUsedAt: string | null;
+  createdAt: string;
+}
+
+export interface TokenCreatedDto extends TokenDto {
+  plaintext: string;
+}
+
+export interface TokenListDto {
+  tokens: TokenDto[];
+  total: number;
+}

apps/gateway/src/admin/admin.controller.ts

@@ -13,8 +13,8 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
-import { eq, type Db, users as usersTable } from '@mosaic/db';
-import type { Auth } from '@mosaic/auth';
+import { eq, type Db, users as usersTable } from '@mosaicstack/db';
+import type { Auth } from '@mosaicstack/auth';
 import { AUTH } from '../auth/auth.tokens.js';
 import { DB } from '../database/database.module.js';
 import { AdminGuard } from './admin.guard.js';

apps/gateway/src/admin/admin.guard.ts

@@ -6,10 +6,11 @@ import {
   Injectable,
   UnauthorizedException,
 } from '@nestjs/common';
+import { createHash } from 'node:crypto';
 import { fromNodeHeaders } from 'better-auth/node';
-import type { Auth } from '@mosaic/auth';
-import type { Db } from '@mosaic/db';
-import { eq, users as usersTable } from '@mosaic/db';
+import type { Auth } from '@mosaicstack/auth';
+import type { Db } from '@mosaicstack/db';
+import { eq, adminTokens, users as usersTable } from '@mosaicstack/db';
 import type { FastifyRequest } from 'fastify';
 import { AUTH } from '../auth/auth.tokens.js';
 import { DB } from '../database/database.module.js';
@@ -19,6 +20,8 @@ interface UserWithRole {
   role?: string;
 }
 
+type AuthenticatedRequest = FastifyRequest & { user: unknown; session: unknown };
+
 @Injectable()
 export class AdminGuard implements CanActivate {
   constructor(
@@ -28,8 +31,64 @@ export class AdminGuard implements CanActivate {
 
   async canActivate(context: ExecutionContext): Promise<boolean> {
     const request = context.switchToHttp().getRequest<FastifyRequest>();
-    const headers = fromNodeHeaders(request.raw.headers);
 
+    // Try bearer token auth first
+    const authHeader = request.raw.headers['authorization'];
+    if (authHeader?.startsWith('Bearer ')) {
+      return this.validateBearerToken(request, authHeader.slice(7));
+    }
+
+    // Fall back to BetterAuth session
+    return this.validateSession(request);
+  }
+
+  private async validateBearerToken(request: FastifyRequest, plaintext: string): Promise<boolean> {
+    const tokenHash = createHash('sha256').update(plaintext).digest('hex');
+
+    const [row] = await this.db
+      .select({
+        tokenId: adminTokens.id,
+        userId: adminTokens.userId,
+        scope: adminTokens.scope,
+        expiresAt: adminTokens.expiresAt,
+        userName: usersTable.name,
+        userEmail: usersTable.email,
+        userRole: usersTable.role,
+      })
+      .from(adminTokens)
+      .innerJoin(usersTable, eq(adminTokens.userId, usersTable.id))
+      .where(eq(adminTokens.tokenHash, tokenHash))
+      .limit(1);
+
+    if (!row) {
+      throw new UnauthorizedException('Invalid API token');
+    }
+
+    if (row.expiresAt && row.expiresAt < new Date()) {
+      throw new UnauthorizedException('API token expired');
+    }
+
+    if (row.userRole !== 'admin') {
+      throw new ForbiddenException('Admin access required');
+    }
+
+    // Update last-used timestamp (fire-and-forget)
+    this.db
+      .update(adminTokens)
+      .set({ lastUsedAt: new Date() })
+      .where(eq(adminTokens.id, row.tokenId))
+      .then(() => {})
+      .catch(() => {});
+
+    const req = request as AuthenticatedRequest;
+    req.user = { id: row.userId, name: row.userName, email: row.userEmail, role: row.userRole };
+    req.session = { id: `token:${row.tokenId}`, userId: row.userId };
+
+    return true;
+  }
+
+  private async validateSession(request: FastifyRequest): Promise<boolean> {
+    const headers = fromNodeHeaders(request.raw.headers);
     const result = await this.auth.api.getSession({ headers });
 
     if (!result) {
@@ -38,8 +97,6 @@ export class AdminGuard implements CanActivate {
 
     const user = result.user as UserWithRole;
 
-    // Ensure the role field is populated. better-auth should include additionalFields
-    // in the session, but as a fallback, fetch the role from the database if needed.
     let userRole = user.role;
     if (!userRole) {
       const [dbUser] = await this.db
@@ -48,7 +105,6 @@ export class AdminGuard implements CanActivate {
         .where(eq(usersTable.id, user.id))
         .limit(1);
       userRole = dbUser?.role ?? 'member';
-      // Update the session user object with the fetched role
       (user as UserWithRole).role = userRole;
     }
 
@@ -56,8 +112,9 @@ export class AdminGuard implements CanActivate {
       throw new ForbiddenException('Admin access required');
     }
 
-    (request as FastifyRequest & { user: unknown; session: unknown }).user = result.user;
-    (request as FastifyRequest & { user: unknown; session: unknown }).session = result.session;
+    const req = request as AuthenticatedRequest;
+    req.user = result.user;
+    req.session = result.session;
 
     return true;
   }

apps/gateway/src/admin/admin.module.ts

@@ -2,10 +2,18 @@ import { Module } from '@nestjs/common';
 import { AdminController } from './admin.controller.js';
 import { AdminHealthController } from './admin-health.controller.js';
 import { AdminJobsController } from './admin-jobs.controller.js';
+import { AdminTokensController } from './admin-tokens.controller.js';
+import { BootstrapController } from './bootstrap.controller.js';
 import { AdminGuard } from './admin.guard.js';
 
 @Module({
-  controllers: [AdminController, AdminHealthController, AdminJobsController],
+  controllers: [
+    AdminController,
+    AdminHealthController,
+    AdminJobsController,
+    AdminTokensController,
+    BootstrapController,
+  ],
   providers: [AdminGuard],
 })
 export class AdminModule {}

apps/gateway/src/admin/bootstrap.controller.ts

@@ -0,0 +1,102 @@
+import {
+  Body,
+  Controller,
+  ForbiddenException,
+  Get,
+  Inject,
+  InternalServerErrorException,
+  Post,
+} from '@nestjs/common';
+import { randomBytes, createHash } from 'node:crypto';
+import { count, eq, type Db, users as usersTable, adminTokens } from '@mosaicstack/db';
+import type { Auth } from '@mosaicstack/auth';
+import { v4 as uuid } from 'uuid';
+import { AUTH } from '../auth/auth.tokens.js';
+import { DB } from '../database/database.module.js';
+import { BootstrapSetupDto } from './bootstrap.dto.js';
+import type { BootstrapStatusDto, BootstrapResultDto } from './bootstrap.dto.js';
+
+@Controller('api/bootstrap')
+export class BootstrapController {
+  constructor(
+    @Inject(AUTH) private readonly auth: Auth,
+    @Inject(DB) private readonly db: Db,
+  ) {}
+
+  @Get('status')
+  async status(): Promise<BootstrapStatusDto> {
+    const [result] = await this.db.select({ total: count() }).from(usersTable);
+    return { needsSetup: (result?.total ?? 0) === 0 };
+  }
+
+  @Post('setup')
+  async setup(@Body() dto: BootstrapSetupDto): Promise<BootstrapResultDto> {
+    // Only allow setup when zero users exist
+    const [result] = await this.db.select({ total: count() }).from(usersTable);
+    if ((result?.total ?? 0) > 0) {
+      throw new ForbiddenException('Setup already completed — users exist');
+    }
+
+    // Create admin user via BetterAuth API
+    const authApi = this.auth.api as unknown as {
+      createUser: (opts: {
+        body: { name: string; email: string; password: string; role?: string };
+      }) => Promise<{
+        user: { id: string; name: string; email: string };
+      }>;
+    };
+
+    const created = await authApi.createUser({
+      body: {
+        name: dto.name,
+        email: dto.email,
+        password: dto.password,
+        role: 'admin',
+      },
+    });
+
+    // Verify user was created
+    const [user] = await this.db
+      .select()
+      .from(usersTable)
+      .where(eq(usersTable.id, created.user.id))
+      .limit(1);
+
+    if (!user) throw new InternalServerErrorException('User created but not found');
+
+    // Ensure role is admin (createUser may not set it via BetterAuth)
+    if (user.role !== 'admin') {
+      await this.db.update(usersTable).set({ role: 'admin' }).where(eq(usersTable.id, user.id));
+    }
+
+    // Generate admin API token
+    const plaintext = randomBytes(32).toString('hex');
+    const tokenHash = createHash('sha256').update(plaintext).digest('hex');
+    const tokenId = uuid();
+
+    const [token] = await this.db
+      .insert(adminTokens)
+      .values({
+        id: tokenId,
+        userId: user.id,
+        tokenHash,
+        label: 'Initial setup token',
+        scope: 'admin',
+      })
+      .returning();
+
+    return {
+      user: {
+        id: user.id,
+        name: user.name,
+        email: user.email,
+        role: 'admin',
+      },
+      token: {
+        id: token!.id,
+        plaintext,
+        label: token!.label,
+      },
+    };
+  }
+}

apps/gateway/src/admin/bootstrap.dto.ts

@@ -0,0 +1,31 @@
+import { IsString, IsEmail, MinLength } from 'class-validator';
+
+export class BootstrapSetupDto {
+  @IsString()
+  name!: string;
+
+  @IsEmail()
+  email!: string;
+
+  @IsString()
+  @MinLength(8)
+  password!: string;
+}
+
+export interface BootstrapStatusDto {
+  needsSetup: boolean;
+}
+
+export interface BootstrapResultDto {
+  user: {
+    id: string;
+    name: string;
+    email: string;
+    role: string;
+  };
+  token: {
+    id: string;
+    plaintext: string;
+    label: string;
+  };
+}

apps/gateway/src/admin/bootstrap.e2e.spec.ts

@@ -0,0 +1,190 @@
+/**
+ * E2E integration test — POST /api/bootstrap/setup
+ *
+ * Regression guard for the `import type { BootstrapSetupDto }` class-erasure
+ * bug (IUV-M01, issue #436).
+ *
+ * When `BootstrapSetupDto` is imported with `import type`, TypeScript erases
+ * the class at compile time. NestJS then sees `Object` as the `@Body()`
+ * metatype, and ValidationPipe with `whitelist:true + forbidNonWhitelisted:true`
+ * treats every property as non-whitelisted, returning:
+ *
+ *   400 { message: ["property email should not exist", "property password should not exist"] }
+ *
+ * The fix is a plain value import (`import { BootstrapSetupDto }`), which
+ * preserves the class reference so Nest can read the class-validator decorators.
+ *
+ * This test MUST fail if `import type` is re-introduced on `BootstrapSetupDto`.
+ * A controller unit test that constructs ValidationPipe manually won't catch
+ * this — only the real DI binding path exercises the metatype lookup.
+ */
+
+import 'reflect-metadata';
+import { describe, it, expect, afterAll, beforeAll } from 'vitest';
+import { Test } from '@nestjs/testing';
+import { ValidationPipe, type INestApplication } from '@nestjs/common';
+import { FastifyAdapter, type NestFastifyApplication } from '@nestjs/platform-fastify';
+import request from 'supertest';
+import { BootstrapController } from './bootstrap.controller.js';
+import type { BootstrapResultDto } from './bootstrap.dto.js';
+
+// ─── Minimal mock dependencies ───────────────────────────────────────────────
+
+/**
+ * We use explicit `@Inject(AUTH)` / `@Inject(DB)` in the controller so we
+ * can provide mock values by token without spinning up the real DB or Auth.
+ */
+import { AUTH } from '../auth/auth.tokens.js';
+import { DB } from '../database/database.module.js';
+
+const MOCK_USER_ID = 'mock-user-id-001';
+
+const mockAuth = {
+  api: {
+    createUser: () =>
+      Promise.resolve({
+        user: {
+          id: MOCK_USER_ID,
+          name: 'Admin',
+          email: 'admin@example.com',
+        },
+      }),
+  },
+};
+
+// Override db.select() so the second query (verify user exists) returns a user.
+// The bootstrap controller calls select().from() twice:
+//   1. count() to check zero users  → returns [{total: 0}]
+//   2. select().where().limit()     → returns [the created user]
+let selectCallCount = 0;
+const mockDbWithUser = {
+  select: () => {
+    selectCallCount++;
+    return {
+      from: () => {
+        if (selectCallCount === 1) {
+          // First call: count — zero users
+          return Promise.resolve([{ total: 0 }]);
+        }
+        // Subsequent calls: return a mock user row
+        return {
+          where: () => ({
+            limit: () =>
+              Promise.resolve([
+                {
+                  id: MOCK_USER_ID,
+                  name: 'Admin',
+                  email: 'admin@example.com',
+                  role: 'admin',
+                },
+              ]),
+          }),
+        };
+      },
+    };
+  },
+  update: () => ({
+    set: () => ({
+      where: () => Promise.resolve([]),
+    }),
+  }),
+  insert: () => ({
+    values: () => ({
+      returning: () =>
+        Promise.resolve([
+          {
+            id: 'token-id-001',
+            label: 'Initial setup token',
+          },
+        ]),
+    }),
+  }),
+};
+
+// ─── Test suite ───────────────────────────────────────────────────────────────
+
+describe('POST /api/bootstrap/setup — ValidationPipe DTO binding', () => {
+  let app: INestApplication;
+
+  beforeAll(async () => {
+    selectCallCount = 0;
+
+    const moduleRef = await Test.createTestingModule({
+      controllers: [BootstrapController],
+      providers: [
+        { provide: AUTH, useValue: mockAuth },
+        { provide: DB, useValue: mockDbWithUser },
+      ],
+    }).compile();
+
+    app = moduleRef.createNestApplication<NestFastifyApplication>(new FastifyAdapter());
+
+    // Mirror main.ts configuration exactly — this is what reproduced the 400.
+    app.useGlobalPipes(
+      new ValidationPipe({
+        whitelist: true,
+        forbidNonWhitelisted: true,
+        transform: true,
+      }),
+    );
+
+    await app.init();
+    // Fastify requires waiting for the adapter to be ready
+    await app.getHttpAdapter().getInstance().ready();
+  });
+
+  afterAll(async () => {
+    await app.close();
+  });
+
+  it('returns 201 (not 400) when a valid {name, email, password} body is sent', async () => {
+    const res = await request(app.getHttpServer())
+      .post('/api/bootstrap/setup')
+      .send({ name: 'Admin', email: 'admin@example.com', password: 'password123' })
+      .set('Content-Type', 'application/json');
+
+    // Before the fix (import type), Nest ValidationPipe returned 400 with
+    // "property email should not exist" / "property password should not exist"
+    // because the DTO class was erased and every field looked non-whitelisted.
+    expect(res.status).not.toBe(400);
+    expect(res.status).toBe(201);
+    const body = res.body as BootstrapResultDto;
+    expect(body.user).toBeDefined();
+    expect(body.user.email).toBe('admin@example.com');
+    expect(body.token).toBeDefined();
+    expect(body.token.plaintext).toBeDefined();
+  });
+
+  it('returns 400 when extra forbidden properties are sent', async () => {
+    // This proves ValidationPipe IS active and working (forbidNonWhitelisted).
+    const res = await request(app.getHttpServer())
+      .post('/api/bootstrap/setup')
+      .send({
+        name: 'Admin',
+        email: 'admin@example.com',
+        password: 'password123',
+        extraField: 'should-be-rejected',
+      })
+      .set('Content-Type', 'application/json');
+
+    expect(res.status).toBe(400);
+  });
+
+  it('returns 400 when email is invalid', async () => {
+    const res = await request(app.getHttpServer())
+      .post('/api/bootstrap/setup')
+      .send({ name: 'Admin', email: 'not-an-email', password: 'password123' })
+      .set('Content-Type', 'application/json');
+
+    expect(res.status).toBe(400);
+  });
+
+  it('returns 400 when password is too short', async () => {
+    const res = await request(app.getHttpServer())
+      .post('/api/bootstrap/setup')
+      .send({ name: 'Admin', email: 'admin@example.com', password: 'short' })
+      .set('Content-Type', 'application/json');
+
+    expect(res.status).toBe(400);
+  });
+});

apps/gateway/src/agent/__tests__/provider-adapters.test.ts

@@ -62,7 +62,7 @@ function restoreEnv(saved: Map<EnvKey, string | undefined>): void {
 }
 
 function makeRegistry(): ModelRegistry {
-  return new ModelRegistry(AuthStorage.inMemory());
+  return ModelRegistry.inMemory(AuthStorage.inMemory());
 }
 
 // ---------------------------------------------------------------------------

apps/gateway/src/agent/__tests__/routing.service.test.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, beforeEach, vi } from 'vitest';
 import { RoutingService } from '../routing.service.js';
-import type { ModelInfo } from '@mosaic/types';
+import type { ModelInfo } from '@mosaicstack/types';
 
 const mockModels: ModelInfo[] = [
   {

apps/gateway/src/agent/adapters/anthropic.adapter.ts

@@ -7,7 +7,7 @@ import type {
   IProviderAdapter,
   ModelInfo,
   ProviderHealth,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 
 /**
  * Anthropic provider adapter.

apps/gateway/src/agent/adapters/ollama.adapter.ts

@@ -6,7 +6,7 @@ import type {
   IProviderAdapter,
   ModelInfo,
   ProviderHealth,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 
 /** Embedding models that Ollama ships with out of the box */
 const OLLAMA_EMBEDDING_MODELS: ReadonlyArray<{

apps/gateway/src/agent/adapters/openai.adapter.ts

@@ -7,7 +7,7 @@ import type {
   IProviderAdapter,
   ModelInfo,
   ProviderHealth,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 
 /**
  * OpenAI provider adapter.

apps/gateway/src/agent/adapters/openrouter.adapter.ts

@@ -6,7 +6,7 @@ import type {
   IProviderAdapter,
   ModelInfo,
   ProviderHealth,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 
 const OPENROUTER_BASE_URL = 'https://openrouter.ai/api/v1';
 

apps/gateway/src/agent/adapters/zai.adapter.ts

@@ -6,7 +6,7 @@ import type {
   IProviderAdapter,
   ModelInfo,
   ProviderHealth,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 import { getModelCapability } from '../model-capabilities.js';
 
 /**

apps/gateway/src/agent/agent-configs.controller.ts

@@ -13,7 +13,7 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/agent/agent.service.ts

@@ -7,8 +7,8 @@ import {
   type AgentSessionEvent,
   type ToolDefinition,
 } from '@mariozechner/pi-coding-agent';
-import type { Brain } from '@mosaic/brain';
-import type { Memory } from '@mosaic/memory';
+import type { Brain } from '@mosaicstack/brain';
+import type { Memory } from '@mosaicstack/memory';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { MEMORY } from '../memory/memory.tokens.js';
 import { EmbeddingService } from '../memory/embedding.service.js';

apps/gateway/src/agent/model-capabilities.ts

@@ -1,4 +1,4 @@
-import type { ModelCapability } from '@mosaic/types';
+import type { ModelCapability } from '@mosaicstack/types';
 
 /**
  * Comprehensive capability matrix for all target models.

apps/gateway/src/agent/provider-credentials.service.ts

@@ -1,62 +1,10 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import { createCipheriv, createDecipheriv, createHash, randomBytes } from 'node:crypto';
-import type { Db } from '@mosaic/db';
-import { providerCredentials, eq, and } from '@mosaic/db';
+import { seal, unseal } from '@mosaicstack/auth';
+import type { Db } from '@mosaicstack/db';
+import { providerCredentials, eq, and } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 import type { ProviderCredentialSummaryDto } from './provider-credentials.dto.js';
 
-const ALGORITHM = 'aes-256-gcm';
-const IV_LENGTH = 12; // 96-bit IV for GCM
-const TAG_LENGTH = 16; // 128-bit auth tag
-
-/**
- * Derive a 32-byte AES-256 key from BETTER_AUTH_SECRET using SHA-256.
- * The secret is assumed to be set in the environment.
- */
-function deriveEncryptionKey(): Buffer {
-  const secret = process.env['BETTER_AUTH_SECRET'];
-  if (!secret) {
-    throw new Error('BETTER_AUTH_SECRET is not set — cannot derive encryption key');
-  }
-  return createHash('sha256').update(secret).digest();
-}
-
-/**
- * Encrypt a plain-text value using AES-256-GCM.
- * Output format: base64(iv + authTag + ciphertext)
- */
-function encrypt(plaintext: string): string {
-  const key = deriveEncryptionKey();
-  const iv = randomBytes(IV_LENGTH);
-  const cipher = createCipheriv(ALGORITHM, key, iv);
-
-  const encrypted = Buffer.concat([cipher.update(plaintext, 'utf8'), cipher.final()]);
-  const authTag = cipher.getAuthTag();
-
-  // Combine iv (12) + authTag (16) + ciphertext and base64-encode
-  const combined = Buffer.concat([iv, authTag, encrypted]);
-  return combined.toString('base64');
-}
-
-/**
- * Decrypt a value encrypted by `encrypt()`.
- * Throws on authentication failure (tampered data).
- */
-function decrypt(encoded: string): string {
-  const key = deriveEncryptionKey();
-  const combined = Buffer.from(encoded, 'base64');
-
-  const iv = combined.subarray(0, IV_LENGTH);
-  const authTag = combined.subarray(IV_LENGTH, IV_LENGTH + TAG_LENGTH);
-  const ciphertext = combined.subarray(IV_LENGTH + TAG_LENGTH);
-
-  const decipher = createDecipheriv(ALGORITHM, key, iv);
-  decipher.setAuthTag(authTag);
-
-  const decrypted = Buffer.concat([decipher.update(ciphertext), decipher.final()]);
-  return decrypted.toString('utf8');
-}
-
 @Injectable()
 export class ProviderCredentialsService {
   private readonly logger = new Logger(ProviderCredentialsService.name);
@@ -74,7 +22,7 @@ export class ProviderCredentialsService {
     value: string,
     metadata?: Record<string, unknown>,
   ): Promise<void> {
-    const encryptedValue = encrypt(value);
+    const encryptedValue = seal(value);
 
     await this.db
       .insert(providerCredentials)
@@ -122,7 +70,7 @@ export class ProviderCredentialsService {
     }
 
     try {
-      return decrypt(row.encryptedValue);
+      return unseal(row.encryptedValue);
     } catch (err) {
       this.logger.error(
         `Failed to decrypt credential for user=${userId} provider=${provider}`,

apps/gateway/src/agent/provider.service.ts

@@ -14,7 +14,7 @@ import type {
   ModelInfo,
   ProviderHealth,
   ProviderInfo,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 import {
   AnthropicAdapter,
   OllamaAdapter,
@@ -67,7 +67,7 @@ export class ProviderService implements OnModuleInit, OnModuleDestroy {
 
   async onModuleInit(): Promise<void> {
     const authStorage = AuthStorage.inMemory();
-    this.registry = new ModelRegistry(authStorage);
+    this.registry = ModelRegistry.inMemory(authStorage);
 
     // Build the default set of adapters that rely on the registry
     this.adapters = [

apps/gateway/src/agent/providers.controller.ts

@@ -1,5 +1,5 @@
 import { Body, Controller, Delete, Get, Inject, Param, Post, UseGuards } from '@nestjs/common';
-import type { RoutingCriteria } from '@mosaic/types';
+import type { RoutingCriteria } from '@mosaicstack/types';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';
 import { ProviderService } from './provider.service.js';

apps/gateway/src/agent/routing.service.ts

@@ -1,6 +1,6 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import type { ModelInfo } from '@mosaic/types';
-import type { RoutingCriteria, RoutingResult, CostTier } from '@mosaic/types';
+import type { ModelInfo } from '@mosaicstack/types';
+import type { RoutingCriteria, RoutingResult, CostTier } from '@mosaicstack/types';
 import { ProviderService } from './provider.service.js';
 
 /** Per-million-token cost thresholds for tier classification */

apps/gateway/src/agent/routing/default-rules.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable, Logger, type OnModuleInit } from '@nestjs/common';
-import { routingRules, type Db, sql } from '@mosaic/db';
+import { routingRules, type Db, sql } from '@mosaicstack/db';
 import { DB } from '../../database/database.module.js';
 import type { RoutingCondition, RoutingAction } from './routing.types.js';
 

apps/gateway/src/agent/routing/routing-engine.service.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import { routingRules, type Db, and, asc, eq, or } from '@mosaic/db';
+import { routingRules, type Db, and, asc, eq, or } from '@mosaicstack/db';
 import { DB } from '../../database/database.module.js';
 import { ProviderService } from '../provider.service.js';
 import { classifyTask } from './task-classifier.js';

apps/gateway/src/agent/routing/routing.controller.ts

@@ -13,7 +13,7 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
-import { routingRules, type Db, and, asc, eq, or, inArray } from '@mosaic/db';
+import { routingRules, type Db, and, asc, eq, or, inArray } from '@mosaicstack/db';
 import { DB } from '../../database/database.module.js';
 import { AuthGuard } from '../../auth/auth.guard.js';
 import { CurrentUser } from '../../auth/current-user.decorator.js';

apps/gateway/src/agent/routing/routing.types.ts

@@ -1,7 +1,7 @@
 /**
  * Routing engine types — M4-002 (condition types) and M4-003 (action types).
  *
- * These types are re-exported from `@mosaic/types` for shared use across packages.
+ * These types are re-exported from `@mosaicstack/types` for shared use across packages.
  */
 
 // ─── Classification primitives ───────────────────────────────────────────────
@@ -23,7 +23,7 @@ export type Domain = 'frontend' | 'backend' | 'devops' | 'docs' | 'general';
 
 /**
  * Cost tier for model selection.
- * Extends the existing `CostTier` in `@mosaic/types` with `local` for self-hosted models.
+ * Extends the existing `CostTier` in `@mosaicstack/types` with `local` for self-hosted models.
  */
 export type CostTier = 'cheap' | 'standard' | 'premium' | 'local';
 

apps/gateway/src/agent/tools/brain-tools.ts

@@ -1,6 +1,6 @@
 import { Type } from '@sinclair/typebox';
 import type { ToolDefinition } from '@mariozechner/pi-coding-agent';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 
 export function createBrainTools(brain: Brain): ToolDefinition[] {
   const listProjects: ToolDefinition = {

apps/gateway/src/agent/tools/memory-tools.ts

@@ -1,7 +1,7 @@
 import { Type } from '@sinclair/typebox';
 import type { ToolDefinition } from '@mariozechner/pi-coding-agent';
-import type { Memory } from '@mosaic/memory';
-import type { EmbeddingProvider } from '@mosaic/memory';
+import type { Memory } from '@mosaicstack/memory';
+import type { EmbeddingProvider } from '@mosaicstack/memory';
 
 /**
  * Create memory tools bound to the session's authenticated userId.

apps/gateway/src/app.module.ts

@@ -24,6 +24,7 @@ import { GCModule } from './gc/gc.module.js';
 import { ReloadModule } from './reload/reload.module.js';
 import { WorkspaceModule } from './workspace/workspace.module.js';
 import { QueueModule } from './queue/queue.module.js';
+import { FederationModule } from './federation/federation.module.js';
 import { ThrottlerGuard, ThrottlerModule } from '@nestjs/throttler';
 
 @Module({
@@ -52,6 +53,7 @@ import { ThrottlerGuard, ThrottlerModule } from '@nestjs/throttler';
     QueueModule,
     ReloadModule,
     WorkspaceModule,
+    FederationModule,
   ],
   controllers: [HealthController],
   providers: [

apps/gateway/src/auth/auth.controller.ts

@@ -1,6 +1,6 @@
 import type { IncomingMessage, ServerResponse } from 'node:http';
 import { toNodeHandler } from 'better-auth/node';
-import type { Auth } from '@mosaic/auth';
+import type { Auth } from '@mosaicstack/auth';
 import type { NestFastifyApplication } from '@nestjs/platform-fastify';
 import { AUTH } from './auth.tokens.js';
 

apps/gateway/src/auth/auth.guard.ts

@@ -6,7 +6,7 @@ import {
   UnauthorizedException,
 } from '@nestjs/common';
 import { fromNodeHeaders } from 'better-auth/node';
-import type { Auth } from '@mosaic/auth';
+import type { Auth } from '@mosaicstack/auth';
 import type { FastifyRequest } from 'fastify';
 import { AUTH } from './auth.tokens.js';
 

apps/gateway/src/auth/auth.module.ts

@@ -1,6 +1,6 @@
 import { Global, Module } from '@nestjs/common';
-import { createAuth, type Auth } from '@mosaic/auth';
-import type { Db } from '@mosaic/db';
+import { createAuth, type Auth } from '@mosaicstack/auth';
+import type { Db } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 import { AUTH } from './auth.tokens.js';
 import { SsoController } from './sso.controller.js';
@@ -14,7 +14,7 @@ import { SsoController } from './sso.controller.js';
       useFactory: (db: Db): Auth =>
         createAuth({
           db,
-          baseURL: process.env['BETTER_AUTH_URL'] ?? 'http://localhost:4000',
+          baseURL: process.env['BETTER_AUTH_URL'] ?? 'http://localhost:14242',
           secret: process.env['BETTER_AUTH_SECRET'],
         }),
       inject: [DB],

apps/gateway/src/auth/sso.controller.ts

@@ -1,5 +1,5 @@
 import { Controller, Get } from '@nestjs/common';
-import { buildSsoDiscovery, type SsoProviderDiscovery } from '@mosaic/auth';
+import { buildSsoDiscovery, type SsoProviderDiscovery } from '@mosaicstack/auth';
 
 @Controller('api/sso/providers')
 export class SsoController {

apps/gateway/src/brain/brain.module.ts

@@ -1,6 +1,6 @@
 import { Global, Module } from '@nestjs/common';
-import { createBrain, type Brain } from '@mosaic/brain';
-import type { Db } from '@mosaic/db';
+import { createBrain, type Brain } from '@mosaicstack/brain';
+import type { Db } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 import { BRAIN } from './brain.tokens.js';
 

apps/gateway/src/chat/chat.gateway.ts

@@ -11,15 +11,15 @@ import {
 } from '@nestjs/websockets';
 import { Server, Socket } from 'socket.io';
 import type { AgentSessionEvent } from '@mariozechner/pi-coding-agent';
-import type { Auth } from '@mosaic/auth';
-import type { Brain } from '@mosaic/brain';
+import type { Auth } from '@mosaicstack/auth';
+import type { Brain } from '@mosaicstack/brain';
 import type {
   SetThinkingPayload,
   SlashCommandPayload,
   SystemReloadPayload,
   RoutingDecisionInfo,
   AbortPayload,
-} from '@mosaic/types';
+} from '@mosaicstack/types';
 import { AgentService, type ConversationHistoryMessage } from '../agent/agent.service.js';
 import { AUTH } from '../auth/auth.tokens.js';
 import { BRAIN } from '../brain/brain.tokens.js';

apps/gateway/src/commands/command-executor-p8012.spec.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest';
 import { CommandExecutorService } from './command-executor.service.js';
-import type { SlashCommandPayload } from '@mosaic/types';
+import type { SlashCommandPayload } from '@mosaicstack/types';
 
 // Minimal mock implementations
 const mockRegistry = {

apps/gateway/src/commands/command-executor.service.ts

@@ -1,7 +1,7 @@
 import { forwardRef, Inject, Injectable, Logger, Optional } from '@nestjs/common';
-import type { QueueHandle } from '@mosaic/queue';
-import type { Brain } from '@mosaic/brain';
-import type { SlashCommandPayload, SlashCommandResultPayload } from '@mosaic/types';
+import type { QueueHandle } from '@mosaicstack/queue';
+import type { Brain } from '@mosaicstack/brain';
+import type { SlashCommandPayload, SlashCommandResultPayload } from '@mosaicstack/types';
 import { AgentService } from '../agent/agent.service.js';
 import { ChatGateway } from '../chat/chat.gateway.js';
 import { SessionGCService } from '../gc/session-gc.service.js';

apps/gateway/src/commands/command-registry.service.spec.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, beforeEach } from 'vitest';
 import { CommandRegistryService } from './command-registry.service.js';
-import type { CommandDef } from '@mosaic/types';
+import type { CommandDef } from '@mosaicstack/types';
 
 const mockCmd: CommandDef = {
   name: 'test',

apps/gateway/src/commands/command-registry.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, type OnModuleInit } from '@nestjs/common';
-import type { CommandDef, CommandManifest } from '@mosaic/types';
+import type { CommandDef, CommandManifest } from '@mosaicstack/types';
 
 @Injectable()
 export class CommandRegistryService implements OnModuleInit {

apps/gateway/src/commands/commands.integration.spec.ts

@@ -13,7 +13,7 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest';
 import { CommandRegistryService } from './command-registry.service.js';
 import { CommandExecutorService } from './command-executor.service.js';
-import type { SlashCommandPayload } from '@mosaic/types';
+import type { SlashCommandPayload } from '@mosaicstack/types';
 
 // ─── Mocks ───────────────────────────────────────────────────────────────────
 

apps/gateway/src/commands/commands.module.ts

@@ -1,5 +1,5 @@
 import { forwardRef, Inject, Module, type OnApplicationShutdown } from '@nestjs/common';
-import { createQueue, type QueueHandle } from '@mosaic/queue';
+import { createQueue, type QueueHandle } from '@mosaicstack/queue';
 import { ChatModule } from '../chat/chat.module.js';
 import { GCModule } from '../gc/gc.module.js';
 import { ReloadModule } from '../reload/reload.module.js';

apps/gateway/src/config/config.module.ts

@@ -1,5 +1,5 @@
 import { Global, Module } from '@nestjs/common';
-import { loadConfig, type MosaicConfig } from '@mosaic/config';
+import { loadConfig, type MosaicConfig } from '@mosaicstack/config';
 
 export const MOSAIC_CONFIG = 'MOSAIC_CONFIG';
 

apps/gateway/src/conversations/conversations.controller.ts

@@ -15,7 +15,7 @@ import {
   Query,
   UseGuards,
 } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/coord/coord.service.ts

@@ -8,7 +8,7 @@ import {
   type MissionStatusSummary,
   type MissionTask,
   type TaskDetail,
-} from '@mosaic/coord';
+} from '@mosaicstack/coord';
 import { promises as fs } from 'node:fs';
 import path from 'node:path';
 

apps/gateway/src/database/database.module.ts

@@ -1,7 +1,10 @@
+import { mkdirSync } from 'node:fs';
+import { homedir } from 'node:os';
+import { join } from 'node:path';
 import { Global, Inject, Module, type OnApplicationShutdown } from '@nestjs/common';
-import { createDb, type Db, type DbHandle } from '@mosaic/db';
-import { createStorageAdapter, type StorageAdapter } from '@mosaic/storage';
-import type { MosaicConfig } from '@mosaic/config';
+import { createDb, createPgliteDb, type Db, type DbHandle } from '@mosaicstack/db';
+import { createStorageAdapter, type StorageAdapter } from '@mosaicstack/storage';
+import type { MosaicConfig } from '@mosaicstack/config';
 import { MOSAIC_CONFIG } from '../config/config.module.js';
 
 export const DB_HANDLE = 'DB_HANDLE';
@@ -13,8 +16,14 @@ export const STORAGE_ADAPTER = 'STORAGE_ADAPTER';
   providers: [
     {
       provide: DB_HANDLE,
-      useFactory: (config: MosaicConfig): DbHandle =>
-        createDb(config.storage.type === 'postgres' ? config.storage.url : undefined),
+      useFactory: (config: MosaicConfig): DbHandle => {
+        if (config.tier === 'local') {
+          const dataDir = join(homedir(), '.config', 'mosaic', 'gateway', 'pglite');
+          mkdirSync(dataDir, { recursive: true });
+          return createPgliteDb(dataDir);
+        }
+        return createDb(config.storage.type === 'postgres' ? config.storage.url : undefined);
+      },
       inject: [MOSAIC_CONFIG],
     },
     {

apps/gateway/src/federation/__tests__/peer-key.spec.ts

@@ -0,0 +1,63 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { sealClientKey, unsealClientKey } from '../peer-key.util.js';
+
+const TEST_SECRET = 'test-secret-for-peer-key-unit-tests-only';
+
+const TEST_PEM = `-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC7o4qne60TB3wo
+pCOW8QqstpxEBpnFo37JxLYEJbpE3gUlJajsHv9UWRQ7m5B7n+MBXwTCQqMEY8Wl
+kHv9tGgz1YGwzBjNKxPJXE6pPTXQ1Oa0VB9l3qHdqF5HtZoJzE0c6dO8HJ5YUVL
+-----END PRIVATE KEY-----`;
+
+let savedSecret: string | undefined;
+
+beforeEach(() => {
+  savedSecret = process.env['BETTER_AUTH_SECRET'];
+  process.env['BETTER_AUTH_SECRET'] = TEST_SECRET;
+});
+
+afterEach(() => {
+  if (savedSecret === undefined) {
+    delete process.env['BETTER_AUTH_SECRET'];
+  } else {
+    process.env['BETTER_AUTH_SECRET'] = savedSecret;
+  }
+});
+
+describe('peer-key seal/unseal', () => {
+  it('round-trip: unsealClientKey(sealClientKey(pem)) returns original pem', () => {
+    const sealed = sealClientKey(TEST_PEM);
+    const roundTripped = unsealClientKey(sealed);
+    expect(roundTripped).toBe(TEST_PEM);
+  });
+
+  it('non-determinism: sealClientKey produces different ciphertext each call', () => {
+    const sealed1 = sealClientKey(TEST_PEM);
+    const sealed2 = sealClientKey(TEST_PEM);
+    expect(sealed1).not.toBe(sealed2);
+  });
+
+  it('at-rest: sealed output does not contain plaintext PEM content', () => {
+    const sealed = sealClientKey(TEST_PEM);
+    expect(sealed).not.toContain('PRIVATE KEY');
+    expect(sealed).not.toContain(
+      'MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC7o4qne60TB3wo',
+    );
+  });
+
+  it('tamper: flipping a byte in the sealed payload causes unseal to throw', () => {
+    const sealed = sealClientKey(TEST_PEM);
+    const buf = Buffer.from(sealed, 'base64');
+    // Flip a byte in the middle of the buffer (past IV and authTag)
+    const midpoint = Math.floor(buf.length / 2);
+    buf[midpoint] = buf[midpoint]! ^ 0xff;
+    const tampered = buf.toString('base64');
+    expect(() => unsealClientKey(tampered)).toThrow();
+  });
+
+  it('missing secret: unsealClientKey throws when BETTER_AUTH_SECRET is unset', () => {
+    const sealed = sealClientKey(TEST_PEM);
+    delete process.env['BETTER_AUTH_SECRET'];
+    expect(() => unsealClientKey(sealed)).toThrow('BETTER_AUTH_SECRET is not set');
+  });
+});

apps/gateway/src/federation/ca.dto.ts

@@ -0,0 +1,57 @@
+/**
+ * DTOs for the Step-CA client service (FED-M2-04).
+ *
+ * IssueCertRequestDto  — input to CaService.issueCert()
+ * IssuedCertDto        — output from CaService.issueCert()
+ */
+
+import { IsInt, IsNotEmpty, IsOptional, IsString, IsUUID, Max, Min } from 'class-validator';
+
+export class IssueCertRequestDto {
+  /**
+   * PEM-encoded PKCS#10 Certificate Signing Request.
+   * The CSR must already include the desired SANs.
+   */
+  @IsString()
+  @IsNotEmpty()
+  csrPem!: string;
+
+  /**
+   * UUID of the federation_grants row this certificate is being issued for.
+   * Embedded as the `mosaic_grant_id` custom OID extension.
+   */
+  @IsUUID()
+  grantId!: string;
+
+  /**
+   * UUID of the local user on whose behalf the cert is being issued.
+   * Embedded as the `mosaic_subject_user_id` custom OID extension.
+   */
+  @IsUUID()
+  subjectUserId!: string;
+
+  /**
+   * Requested certificate validity in seconds.
+   * Hard cap: 900 s (15 minutes). Default: 300 s (5 minutes).
+   * The service will always clamp to 900 s regardless of this value.
+   */
+  @IsOptional()
+  @IsInt()
+  @Min(60)
+  @Max(15 * 60)
+  ttlSeconds: number = 300;
+}
+
+export class IssuedCertDto {
+  /** PEM-encoded leaf certificate returned by step-ca. */
+  certPem!: string;
+
+  /**
+   * PEM-encoded full certificate chain (leaf + intermediates + root).
+   * Falls back to `certPem` when step-ca returns no `certChain` field.
+   */
+  certChainPem!: string;
+
+  /** Decimal serial number string of the issued certificate. */
+  serialNumber!: string;
+}

apps/gateway/src/federation/ca.service.spec.ts

@@ -0,0 +1,577 @@
+/**
+ * Unit tests for CaService — Step-CA client (FED-M2-04).
+ *
+ * Coverage:
+ *  - Happy path: returns IssuedCertDto with certPem, certChainPem, serialNumber
+ *  - certChainPem fallback: falls back to certPem when certChain absent
+ *  - certChainPem from ca field: uses crt+ca when certChain absent but ca present
+ *  - HTTP 401: throws CaServiceError with cause + remediation
+ *  - HTTP non-401 error: throws CaServiceError
+ *  - Malformed CSR: throws before HTTP call (INVALID_CSR)
+ *  - Non-JSON response: throws CaServiceError
+ *  - HTTPS connection error: throws CaServiceError
+ *  - JWT custom claims: mosaic_grant_id and mosaic_subject_user_id present in OTT payload
+ *    verified with jose.jwtVerify (real signature check)
+ *  - CaServiceError: has cause + remediation properties
+ *  - Missing crt in response: throws CaServiceError
+ *  - Real CSR validation: valid P-256 CSR passes; malformed CSR fails with INVALID_CSR
+ *  - provisionerPassword never appears in CaServiceError messages
+ *  - HTTPS-only enforcement: http:// URL throws in constructor
+ */
+
+import 'reflect-metadata';
+import { describe, it, expect, vi, beforeEach, type Mock } from 'vitest';
+import { jwtVerify, exportJWK, generateKeyPair } from 'jose';
+import { Pkcs10CertificateRequestGenerator } from '@peculiar/x509';
+
+// ---------------------------------------------------------------------------
+// Mock node:https BEFORE importing CaService so the mock is in place when
+// the module is loaded. Vitest/ESM require vi.mock at the top level.
+// ---------------------------------------------------------------------------
+
+vi.mock('node:https', () => {
+  const mockRequest = vi.fn();
+  const mockAgent = vi.fn().mockImplementation(() => ({}));
+  return {
+    default: { request: mockRequest, Agent: mockAgent },
+    request: mockRequest,
+    Agent: mockAgent,
+  };
+});
+
+vi.mock('node:fs', () => {
+  const mockReadFileSync = vi
+    .fn()
+    .mockReturnValue('-----BEGIN CERTIFICATE-----\nFAKEROOT\n-----END CERTIFICATE-----\n');
+  return {
+    default: { readFileSync: mockReadFileSync },
+    readFileSync: mockReadFileSync,
+  };
+});
+
+// ---------------------------------------------------------------------------
+// Helpers
+// ---------------------------------------------------------------------------
+
+// Real self-signed EC P-256 certificate generated with openssl for testing.
+// openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:P-256 -nodes -keyout /dev/null \
+//   -out /dev/stdout -subj "/CN=test" -days 1
+const FAKE_CERT_PEM = `-----BEGIN CERTIFICATE-----
+MIIBdDCCARmgAwIBAgIUM+iUJSayN+PwXkyVN6qwSY7sr6gwCgYIKoZIzj0EAwIw
+DzENMAsGA1UEAwwEdGVzdDAeFw0yNjA0MjIwMzE5MTlaFw0yNjA0MjMwMzE5MTla
+MA8xDTALBgNVBAMMBHRlc3QwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAR21kHL
+n1GmFQ4TEBw3EA53pD+2McIBf5WcoHE+x0eMz5DpRKJe0ksHwOVN5Yev5d57kb+4
+MvG1LhbHCB/uQo8So1MwUTAdBgNVHQ4EFgQUPq0pdIGiQ7pLBRXICS8GTliCrLsw
+HwYDVR0jBBgwFoAUPq0pdIGiQ7pLBRXICS8GTliCrLswDwYDVR0TAQH/BAUwAwEB
+/zAKBggqhkjOPQQDAgNJADBGAiEAypJqyC6S77aQ3eEXokM6sgAsD7Oa3tJbCbVm
+zG3uJb0CIQC1w+GE+Ad0OTR5Quja46R1RjOo8ydpzZ7Fh4rouAiwEw==
+-----END CERTIFICATE-----
+`;
+
+// Use a second copy of the same cert for the CA field in tests.
+const FAKE_CA_PEM = FAKE_CERT_PEM;
+
+const GRANT_ID = 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11';
+const SUBJECT_USER_ID = 'b1ffcd00-0d1c-5f09-cc7e-7cc0ce491b22';
+
+// ---------------------------------------------------------------------------
+// Generate a real EC P-256 key pair and CSR for integration-style tests
+// ---------------------------------------------------------------------------
+
+// We generate this once at module level so it's available to all tests.
+// The key pair and CSR PEM are populated asynchronously in the test that needs them.
+
+let realCsrPem: string;
+
+async function generateRealCsr(): Promise<string> {
+  const { privateKey, publicKey } = await generateKeyPair('ES256');
+  // Export public key JWK for potential verification (not used here but confirms key is exportable)
+  await exportJWK(publicKey);
+
+  // Use @peculiar/x509 to build a proper CSR
+  const csr = await Pkcs10CertificateRequestGenerator.create({
+    name: 'CN=test.federation.local',
+    signingAlgorithm: { name: 'ECDSA', hash: 'SHA-256' },
+    keys: { privateKey, publicKey },
+  });
+
+  return csr.toString('pem');
+}
+
+// ---------------------------------------------------------------------------
+// Setup env before importing service
+// We use an EC P-256 key pair here so the JWK-based signing works.
+// The key pair is generated once and stored in module-level vars.
+// ---------------------------------------------------------------------------
+
+// Real EC P-256 test JWK (test-only, never used in production).
+// Generated with node webcrypto for use in unit tests.
+const TEST_EC_PRIVATE_JWK = {
+  key_ops: ['sign'],
+  ext: true,
+  kty: 'EC',
+  x: 'Xq2RjZctcPcUMU14qfjs3MtZTmFk8z1lFGQyypgXZOU',
+  y: 't8w9Cbt4RVmR47Wnb_i5cLwefEnMcvwse049zu9Rl_E',
+  crv: 'P-256',
+  d: 'TM6N79w1HE-PiML5Td4mbXfJaLHEaZrVyVrrwlJv7q8',
+  kid: 'test-ec-kid',
+};
+
+const TEST_EC_PUBLIC_JWK = {
+  key_ops: ['verify'],
+  ext: true,
+  kty: 'EC',
+  x: 'Xq2RjZctcPcUMU14qfjs3MtZTmFk8z1lFGQyypgXZOU',
+  y: 't8w9Cbt4RVmR47Wnb_i5cLwefEnMcvwse049zu9Rl_E',
+  crv: 'P-256',
+  kid: 'test-ec-kid',
+};
+
+process.env['STEP_CA_URL'] = 'https://step-ca:9000';
+process.env['STEP_CA_PROVISIONER_KEY_JSON'] = JSON.stringify(TEST_EC_PRIVATE_JWK);
+process.env['STEP_CA_ROOT_CERT_PATH'] = '/fake/root.pem';
+
+// Import AFTER env is set and mocks are registered
+import * as httpsModule from 'node:https';
+import { CaService, CaServiceError } from './ca.service.js';
+import type { IssueCertRequestDto } from './ca.dto.js';
+
+// ---------------------------------------------------------------------------
+// Helper to build a mock https.request that simulates step-ca
+// ---------------------------------------------------------------------------
+
+function makeHttpsMock(statusCode: number, body: unknown, errorMsg?: string): void {
+  const mockReq = {
+    write: vi.fn(),
+    end: vi.fn(),
+    on: vi.fn(),
+    setTimeout: vi.fn(),
+  };
+
+  (httpsModule.request as unknown as Mock).mockImplementation(
+    (
+      _options: unknown,
+      callback: (res: {
+        statusCode: number;
+        on: (event: string, cb: (chunk?: Buffer) => void) => void;
+      }) => void,
+    ) => {
+      const mockRes = {
+        statusCode,
+        on: (event: string, cb: (chunk?: Buffer) => void) => {
+          if (event === 'data') {
+            if (body !== undefined) {
+              cb(Buffer.from(typeof body === 'string' ? body : JSON.stringify(body)));
+            }
+          }
+          if (event === 'end') {
+            cb();
+          }
+        },
+      };
+
+      if (errorMsg) {
+        // Simulate a connection error via the req.on('error') handler
+        mockReq.on.mockImplementation((event: string, cb: (err: Error) => void) => {
+          if (event === 'error') {
+            setImmediate(() => cb(new Error(errorMsg)));
+          }
+        });
+      } else {
+        // Normal flow: call the response callback
+        setImmediate(() => callback(mockRes));
+      }
+
+      return mockReq;
+    },
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Tests
+// ---------------------------------------------------------------------------
+
+describe('CaService', () => {
+  let service: CaService;
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    service = new CaService();
+  });
+
+  function makeReq(overrides: Partial<IssueCertRequestDto> = {}): IssueCertRequestDto {
+    // Use a real CSR if available; fall back to a minimal placeholder
+    const defaultCsr = realCsrPem ?? makeFakeCsr();
+    return {
+      csrPem: defaultCsr,
+      grantId: GRANT_ID,
+      subjectUserId: SUBJECT_USER_ID,
+      ttlSeconds: 300,
+      ...overrides,
+    };
+  }
+
+  function makeFakeCsr(): string {
+    // A structurally valid-looking CSR header/footer (body will fail crypto verify)
+    return `-----BEGIN CERTIFICATE REQUEST-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0000000000000000AAAA\n-----END CERTIFICATE REQUEST-----\n`;
+  }
+
+  // -------------------------------------------------------------------------
+  // Real CSR generation — runs once and populates realCsrPem
+  // -------------------------------------------------------------------------
+
+  it('generates a real P-256 CSR that passes validateCsr', async () => {
+    realCsrPem = await generateRealCsr();
+    expect(realCsrPem).toMatch(/BEGIN CERTIFICATE REQUEST/);
+
+    // Now test that the service's validateCsr accepts it.
+    // We call it indirectly via issueCert with a successful mock.
+    makeHttpsMock(200, { crt: FAKE_CERT_PEM, certChain: [FAKE_CERT_PEM, FAKE_CA_PEM] });
+    const result = await service.issueCert(makeReq({ csrPem: realCsrPem }));
+    expect(result.certPem).toBe(FAKE_CERT_PEM);
+  });
+
+  it('throws INVALID_CSR for a malformed PEM-shaped CSR', async () => {
+    const malformedCsr =
+      '-----BEGIN CERTIFICATE REQUEST-----\nTm90QVJlYWxDU1I=\n-----END CERTIFICATE REQUEST-----\n';
+
+    await expect(service.issueCert(makeReq({ csrPem: malformedCsr }))).rejects.toSatisfy(
+      (err: unknown) => {
+        if (!(err instanceof CaServiceError)) return false;
+        expect(err.code).toBe('INVALID_CSR');
+        return true;
+      },
+    );
+  });
+
+  // -------------------------------------------------------------------------
+  // Happy path
+  // -------------------------------------------------------------------------
+
+  it('returns IssuedCertDto on success (certChain present)', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(200, {
+      crt: FAKE_CERT_PEM,
+      certChain: [FAKE_CERT_PEM, FAKE_CA_PEM],
+    });
+
+    const result = await service.issueCert(makeReq());
+
+    expect(result.certPem).toBe(FAKE_CERT_PEM);
+    expect(result.certChainPem).toContain(FAKE_CERT_PEM);
+    expect(result.certChainPem).toContain(FAKE_CA_PEM);
+    expect(typeof result.serialNumber).toBe('string');
+  });
+
+  // -------------------------------------------------------------------------
+  // certChainPem fallback — certChain absent, ca field present
+  // -------------------------------------------------------------------------
+
+  it('builds certChainPem from crt+ca when certChain is absent', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(200, {
+      crt: FAKE_CERT_PEM,
+      ca: FAKE_CA_PEM,
+    });
+
+    const result = await service.issueCert(makeReq());
+
+    expect(result.certPem).toBe(FAKE_CERT_PEM);
+    expect(result.certChainPem).toContain(FAKE_CERT_PEM);
+    expect(result.certChainPem).toContain(FAKE_CA_PEM);
+  });
+
+  // -------------------------------------------------------------------------
+  // certChainPem fallback — no certChain, no ca field
+  // -------------------------------------------------------------------------
+
+  it('falls back to certPem alone when certChain and ca are absent', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(200, { crt: FAKE_CERT_PEM });
+
+    const result = await service.issueCert(makeReq());
+
+    expect(result.certPem).toBe(FAKE_CERT_PEM);
+    expect(result.certChainPem).toBe(FAKE_CERT_PEM);
+  });
+
+  // -------------------------------------------------------------------------
+  // HTTP 401
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError on HTTP 401', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(401, { message: 'Unauthorized' });
+
+    await expect(service.issueCert(makeReq())).rejects.toSatisfy((err: unknown) => {
+      if (!(err instanceof CaServiceError)) return false;
+      expect(err.message).toMatch(/401/);
+      expect(err.remediation).toBeTruthy();
+      return true;
+    });
+  });
+
+  // -------------------------------------------------------------------------
+  // HTTP non-401 error (e.g. 422)
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError on HTTP 422', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(422, { message: 'Unprocessable Entity' });
+
+    await expect(service.issueCert(makeReq())).rejects.toBeInstanceOf(CaServiceError);
+  });
+
+  // -------------------------------------------------------------------------
+  // Malformed CSR — throws before HTTP call
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError for malformed CSR without making HTTP call', async () => {
+    const requestSpy = vi.spyOn(httpsModule, 'request');
+
+    await expect(service.issueCert(makeReq({ csrPem: 'not-a-valid-csr' }))).rejects.toBeInstanceOf(
+      CaServiceError,
+    );
+
+    expect(requestSpy).not.toHaveBeenCalled();
+  });
+
+  // -------------------------------------------------------------------------
+  // Non-JSON response
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError when step-ca returns non-JSON', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(200, 'this is not json');
+
+    await expect(service.issueCert(makeReq())).rejects.toSatisfy((err: unknown) => {
+      if (!(err instanceof CaServiceError)) return false;
+      expect(err.message).toMatch(/non-JSON/);
+      return true;
+    });
+  });
+
+  // -------------------------------------------------------------------------
+  // HTTPS connection error
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError on HTTPS connection error', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(0, undefined, 'connect ECONNREFUSED 127.0.0.1:9000');
+
+    await expect(service.issueCert(makeReq())).rejects.toSatisfy((err: unknown) => {
+      if (!(err instanceof CaServiceError)) return false;
+      expect(err.message).toMatch(/HTTPS connection/);
+      expect(err.cause).toBeInstanceOf(Error);
+      return true;
+    });
+  });
+
+  // -------------------------------------------------------------------------
+  // JWT custom claims: mosaic_grant_id and mosaic_subject_user_id
+  // Verified with jose.jwtVerify for real signature verification (M6)
+  // -------------------------------------------------------------------------
+
+  it('OTT contains mosaic_grant_id, mosaic_subject_user_id, and jti; signature verifies with jose', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+
+    let capturedBody: Record<string, unknown> | undefined;
+
+    const mockReq = {
+      write: vi.fn((data: string) => {
+        capturedBody = JSON.parse(data) as Record<string, unknown>;
+      }),
+      end: vi.fn(),
+      on: vi.fn(),
+      setTimeout: vi.fn(),
+    };
+
+    (httpsModule.request as unknown as Mock).mockImplementation(
+      (
+        _options: unknown,
+        callback: (res: {
+          statusCode: number;
+          on: (event: string, cb: (chunk?: Buffer) => void) => void;
+        }) => void,
+      ) => {
+        const mockRes = {
+          statusCode: 200,
+          on: (event: string, cb: (chunk?: Buffer) => void) => {
+            if (event === 'data') {
+              cb(Buffer.from(JSON.stringify({ crt: FAKE_CERT_PEM })));
+            }
+            if (event === 'end') {
+              cb();
+            }
+          },
+        };
+        setImmediate(() => callback(mockRes));
+        return mockReq;
+      },
+    );
+
+    await service.issueCert(makeReq({ csrPem: realCsrPem }));
+
+    expect(capturedBody).toBeDefined();
+    const ott = capturedBody!['ott'] as string;
+    expect(typeof ott).toBe('string');
+
+    // Verify JWT structure
+    const parts = ott.split('.');
+    expect(parts).toHaveLength(3);
+
+    // Decode payload without signature check first
+    const payloadJson = Buffer.from(parts[1]!, 'base64url').toString('utf8');
+    const payload = JSON.parse(payloadJson) as Record<string, unknown>;
+
+    expect(payload['mosaic_grant_id']).toBe(GRANT_ID);
+    expect(payload['mosaic_subject_user_id']).toBe(SUBJECT_USER_ID);
+    expect(typeof payload['jti']).toBe('string'); // M2: jti present
+    expect(payload['jti']).toMatch(/^[0-9a-f-]{36}$/); // UUID format
+
+    // M3: top-level sha should NOT be present; step.sha should be present
+    expect(payload['sha']).toBeUndefined();
+    const step = payload['step'] as Record<string, unknown> | undefined;
+    expect(step?.['sha']).toBeDefined();
+
+    // M6: Verify signature with jose.jwtVerify using the public key
+    const { importJWK: importJose } = await import('jose');
+    const publicKey = await importJose(TEST_EC_PUBLIC_JWK, 'ES256');
+    const verified = await jwtVerify(ott, publicKey);
+    expect(verified.payload['mosaic_grant_id']).toBe(GRANT_ID);
+  });
+
+  // -------------------------------------------------------------------------
+  // CaServiceError has cause + remediation
+  // -------------------------------------------------------------------------
+
+  it('CaServiceError carries cause and remediation', () => {
+    const cause = new Error('original error');
+    const err = new CaServiceError('something went wrong', 'fix it like this', cause);
+
+    expect(err).toBeInstanceOf(Error);
+    expect(err).toBeInstanceOf(CaServiceError);
+    expect(err.message).toBe('something went wrong');
+    expect(err.remediation).toBe('fix it like this');
+    expect(err.cause).toBe(cause);
+    expect(err.name).toBe('CaServiceError');
+  });
+
+  // -------------------------------------------------------------------------
+  // Missing crt in response
+  // -------------------------------------------------------------------------
+
+  it('throws CaServiceError when response is missing the crt field', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(200, { ca: FAKE_CA_PEM });
+
+    await expect(service.issueCert(makeReq())).rejects.toSatisfy((err: unknown) => {
+      if (!(err instanceof CaServiceError)) return false;
+      expect(err.message).toMatch(/missing the "crt" field/);
+      return true;
+    });
+  });
+
+  // -------------------------------------------------------------------------
+  // M6: provisionerPassword must never appear in CaServiceError messages
+  // -------------------------------------------------------------------------
+
+  it('provisionerPassword does not appear in any CaServiceError message', async () => {
+    // Temporarily set a recognizable password to test against
+    const originalPassword = process.env['STEP_CA_PROVISIONER_PASSWORD'];
+    process.env['STEP_CA_PROVISIONER_PASSWORD'] = 'super-secret-password-12345';
+
+    // Generate a bad CSR to trigger an error path
+    const caughtErrors: CaServiceError[] = [];
+    try {
+      await service.issueCert(makeReq({ csrPem: 'not-a-csr' }));
+    } catch (err) {
+      if (err instanceof CaServiceError) {
+        caughtErrors.push(err);
+      }
+    }
+
+    // Also try HTTP 401 path
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+    makeHttpsMock(401, { message: 'Unauthorized' });
+    try {
+      await service.issueCert(makeReq({ csrPem: realCsrPem }));
+    } catch (err) {
+      if (err instanceof CaServiceError) {
+        caughtErrors.push(err);
+      }
+    }
+
+    for (const err of caughtErrors) {
+      expect(err.message).not.toContain('super-secret-password-12345');
+      if (err.remediation) {
+        expect(err.remediation).not.toContain('super-secret-password-12345');
+      }
+    }
+
+    process.env['STEP_CA_PROVISIONER_PASSWORD'] = originalPassword;
+  });
+
+  // -------------------------------------------------------------------------
+  // M7: HTTPS-only enforcement in constructor
+  // -------------------------------------------------------------------------
+
+  it('throws in constructor if STEP_CA_URL uses http://', () => {
+    const originalUrl = process.env['STEP_CA_URL'];
+    process.env['STEP_CA_URL'] = 'http://step-ca:9000';
+
+    expect(() => new CaService()).toThrow(CaServiceError);
+
+    process.env['STEP_CA_URL'] = originalUrl;
+  });
+
+  // -------------------------------------------------------------------------
+  // TTL clamp: ttlSeconds is clamped to 900 s (15 min) maximum
+  // -------------------------------------------------------------------------
+
+  it('clamps ttlSeconds to 900 s regardless of input', async () => {
+    if (!realCsrPem) realCsrPem = await generateRealCsr();
+
+    let capturedBody: Record<string, unknown> | undefined;
+
+    const mockReq = {
+      write: vi.fn((data: string) => {
+        capturedBody = JSON.parse(data) as Record<string, unknown>;
+      }),
+      end: vi.fn(),
+      on: vi.fn(),
+      setTimeout: vi.fn(),
+    };
+
+    (httpsModule.request as unknown as Mock).mockImplementation(
+      (
+        _options: unknown,
+        callback: (res: {
+          statusCode: number;
+          on: (event: string, cb: (chunk?: Buffer) => void) => void;
+        }) => void,
+      ) => {
+        const mockRes = {
+          statusCode: 200,
+          on: (event: string, cb: (chunk?: Buffer) => void) => {
+            if (event === 'data') {
+              cb(Buffer.from(JSON.stringify({ crt: FAKE_CERT_PEM })));
+            }
+            if (event === 'end') {
+              cb();
+            }
+          },
+        };
+        setImmediate(() => callback(mockRes));
+        return mockReq;
+      },
+    );
+
+    // Request 86400 s — should be clamped to 900
+    await service.issueCert(makeReq({ ttlSeconds: 86400 }));
+
+    expect(capturedBody).toBeDefined();
+    const validity = capturedBody!['validity'] as Record<string, unknown>;
+    expect(validity['duration']).toBe('900s');
+  });
+});

apps/gateway/src/federation/ca.service.ts

@@ -0,0 +1,635 @@
+/**
+ * CaService — Step-CA client for federation grant certificate issuance.
+ *
+ * Responsibilities:
+ *  1. Build a JWK-provisioner One-Time Token (OTT) signed with the provisioner
+ *     private key (ES256/ES384/RS256 per JWK kty/crv) carrying Mosaic-specific
+ *     claims (`mosaic_grant_id`, `mosaic_subject_user_id`, `step.sha`) per the
+ *     step-ca JWK provisioner protocol.
+ *  2. POST the CSR + OTT to the step-ca `/1.0/sign` endpoint over HTTPS,
+ *     pinning the trust to the CA root cert supplied via env.
+ *  3. Return an IssuedCertDto containing the leaf cert, full chain, and
+ *     serial number.
+ *
+ * Environment variables (all required at runtime — validated in constructor):
+ *   STEP_CA_URL                   https://step-ca:9000
+ *   STEP_CA_PROVISIONER_KEY_JSON  JWK provisioner private key (JSON)
+ *   STEP_CA_ROOT_CERT_PATH        Absolute path to the CA root PEM
+ *
+ * Optional (only used for JWK PBES2 decrypt at startup if key is encrypted):
+ *   STEP_CA_PROVISIONER_PASSWORD  JWK provisioner password (raw string)
+ *
+ * Custom OID registry (PRD §6, docs/federation/SETUP.md):
+ *   1.3.6.1.4.1.99999.1  — mosaic_grant_id
+ *   1.3.6.1.4.1.99999.2  — mosaic_subject_user_id
+ *
+ * Fail-loud contract:
+ *   Every error path throws CaServiceError with a human-readable `remediation`
+ *   field. Silent OID-stripping is NEVER allowed — if the sign response does
+ *   not include the cert, we throw rather than return a cert that may be
+ *   missing the custom extensions.
+ */
+
+import { Injectable, Logger } from '@nestjs/common';
+import * as crypto from 'node:crypto';
+import * as fs from 'node:fs';
+import * as https from 'node:https';
+import { SignJWT, importJWK } from 'jose';
+import { Pkcs10CertificateRequest } from '@peculiar/x509';
+import type { IssueCertRequestDto } from './ca.dto.js';
+import { IssuedCertDto } from './ca.dto.js';
+
+// ---------------------------------------------------------------------------
+// Custom error class
+// ---------------------------------------------------------------------------
+
+export class CaServiceError extends Error {
+  readonly cause: unknown;
+  readonly remediation: string;
+  readonly code?: string;
+
+  constructor(message: string, remediation: string, cause?: unknown, code?: string) {
+    super(message);
+    this.name = 'CaServiceError';
+    this.cause = cause;
+    this.remediation = remediation;
+    this.code = code;
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Internal types
+// ---------------------------------------------------------------------------
+
+interface StepSignResponse {
+  crt: string;
+  ca?: string;
+  certChain?: string[];
+}
+
+interface JwkKey {
+  kty: string;
+  kid?: string;
+  use?: string;
+  alg?: string;
+  k?: string; // symmetric
+  n?: string; // RSA
+  e?: string;
+  d?: string;
+  x?: string; // EC
+  y?: string;
+  crv?: string;
+  [key: string]: unknown;
+}
+
+// ---------------------------------------------------------------------------
+// Helpers
+// ---------------------------------------------------------------------------
+
+/** UUID regex for validation */
+const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+
+/**
+ * Derive the JWT algorithm string from a JWK's kty/crv fields.
+ * EC P-256 → ES256, EC P-384 → ES384, RSA → RS256.
+ */
+function algFromJwk(jwk: JwkKey): string {
+  if (jwk.alg) return jwk.alg;
+  if (jwk.kty === 'EC') {
+    if (jwk.crv === 'P-384') return 'ES384';
+    return 'ES256'; // default for P-256 and Ed25519-style EC keys
+  }
+  if (jwk.kty === 'RSA') return 'RS256';
+  throw new CaServiceError(
+    `Unsupported JWK kty: ${jwk.kty}`,
+    'STEP_CA_PROVISIONER_KEY_JSON must be an EC (P-256/P-384) or RSA JWK private key.',
+  );
+}
+
+/**
+ * Compute SHA-256 fingerprint of the DER-encoded CSR body.
+ * step-ca uses this as the `step.sha` claim to bind the OTT to a specific CSR.
+ */
+function csrFingerprint(csrPem: string): string {
+  // Strip PEM headers and decode base64 body
+  const b64 = csrPem
+    .replace(/-----BEGIN CERTIFICATE REQUEST-----/, '')
+    .replace(/-----END CERTIFICATE REQUEST-----/, '')
+    .replace(/\s+/g, '');
+
+  let derBuf: Buffer;
+  try {
+    derBuf = Buffer.from(b64, 'base64');
+  } catch (err) {
+    throw new CaServiceError(
+      'Failed to base64-decode the CSR PEM body',
+      'Verify that csrPem is a valid PKCS#10 PEM-encoded certificate request.',
+      err,
+    );
+  }
+
+  if (derBuf.length === 0) {
+    throw new CaServiceError(
+      'CSR PEM decoded to empty buffer — malformed input',
+      'Provide a valid non-empty PKCS#10 PEM-encoded certificate request.',
+    );
+  }
+
+  return crypto.createHash('sha256').update(derBuf).digest('hex');
+}
+
+/**
+ * Send a JSON POST to the step-ca sign endpoint.
+ * Returns the parsed response body or throws CaServiceError.
+ */
+function httpsPost(url: string, body: unknown, agent: https.Agent): Promise<StepSignResponse> {
+  return new Promise((resolve, reject) => {
+    const bodyStr = JSON.stringify(body);
+    const parsed = new URL(url);
+
+    const options: https.RequestOptions = {
+      hostname: parsed.hostname,
+      port: parsed.port ? parseInt(parsed.port, 10) : 443,
+      path: parsed.pathname,
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Content-Length': Buffer.byteLength(bodyStr),
+      },
+      agent,
+      timeout: 5000,
+    };
+
+    const req = https.request(options, (res) => {
+      const chunks: Buffer[] = [];
+      res.on('data', (chunk: Buffer) => chunks.push(chunk));
+      res.on('end', () => {
+        const raw = Buffer.concat(chunks).toString('utf8');
+
+        if (res.statusCode === 401) {
+          reject(
+            new CaServiceError(
+              `step-ca returned HTTP 401 — invalid or expired OTT`,
+              'Check STEP_CA_PROVISIONER_KEY_JSON. Ensure the mosaic-fed provisioner is configured in the CA.',
+            ),
+          );
+          return;
+        }
+
+        if (res.statusCode && res.statusCode >= 400) {
+          reject(
+            new CaServiceError(
+              `step-ca returned HTTP ${res.statusCode}: ${raw.slice(0, 256)}`,
+              `Review the step-ca logs. Status ${res.statusCode} may indicate a CSR policy violation or misconfigured provisioner.`,
+            ),
+          );
+          return;
+        }
+
+        let parsed: unknown;
+        try {
+          parsed = JSON.parse(raw) as unknown;
+        } catch (err) {
+          reject(
+            new CaServiceError(
+              'step-ca returned a non-JSON response',
+              'Verify STEP_CA_URL points to a running step-ca instance and that TLS is properly configured.',
+              err,
+            ),
+          );
+          return;
+        }
+
+        resolve(parsed as StepSignResponse);
+      });
+    });
+
+    req.setTimeout(5000, () => {
+      req.destroy(new Error('Request timed out after 5000ms'));
+    });
+
+    req.on('error', (err: Error) => {
+      reject(
+        new CaServiceError(
+          `HTTPS connection to step-ca failed: ${err.message}`,
+          'Ensure STEP_CA_URL is reachable and STEP_CA_ROOT_CERT_PATH points to the correct CA root certificate.',
+          err,
+        ),
+      );
+    });
+
+    req.write(bodyStr);
+    req.end();
+  });
+}
+
+/**
+ * Extract a decimal serial number from a PEM certificate.
+ * Throws CaServiceError on failure — never silently returns 'unknown'.
+ */
+function extractSerial(certPem: string): string {
+  let cert: crypto.X509Certificate;
+  try {
+    cert = new crypto.X509Certificate(certPem);
+  } catch (err) {
+    throw new CaServiceError(
+      'Failed to parse the issued certificate PEM',
+      'The certificate returned by step-ca could not be parsed. Check that step-ca is returning a valid PEM certificate.',
+      err,
+      'CERT_PARSE',
+    );
+  }
+  return cert.serialNumber;
+}
+
+// ---------------------------------------------------------------------------
+// Service
+// ---------------------------------------------------------------------------
+
+@Injectable()
+export class CaService {
+  private readonly logger = new Logger(CaService.name);
+
+  private readonly caUrl: string;
+  private readonly rootCertPath: string;
+  private readonly httpsAgent: https.Agent;
+  private readonly jwk: JwkKey;
+  private cachedPrivateKey: crypto.KeyObject | null = null;
+  private readonly jwtAlg: string;
+  private readonly kid: string;
+
+  constructor() {
+    const caUrl = process.env['STEP_CA_URL'];
+    const provisionerKeyJson = process.env['STEP_CA_PROVISIONER_KEY_JSON'];
+    const rootCertPath = process.env['STEP_CA_ROOT_CERT_PATH'];
+
+    if (!caUrl) {
+      throw new CaServiceError(
+        'STEP_CA_URL is not set',
+        'Set STEP_CA_URL to the base URL of the step-ca instance, e.g. https://step-ca:9000',
+      );
+    }
+
+    // Enforce HTTPS-only URL
+    let parsedUrl: URL;
+    try {
+      parsedUrl = new URL(caUrl);
+    } catch (err) {
+      throw new CaServiceError(
+        `STEP_CA_URL is not a valid URL: ${caUrl}`,
+        'Set STEP_CA_URL to a valid HTTPS URL, e.g. https://step-ca:9000',
+        err,
+      );
+    }
+    if (parsedUrl.protocol !== 'https:') {
+      throw new CaServiceError(
+        `STEP_CA_URL must use HTTPS — got: ${parsedUrl.protocol}`,
+        'Set STEP_CA_URL to an https:// URL. Unencrypted connections to the CA are not permitted.',
+      );
+    }
+
+    if (!provisionerKeyJson) {
+      throw new CaServiceError(
+        'STEP_CA_PROVISIONER_KEY_JSON is not set',
+        'Set STEP_CA_PROVISIONER_KEY_JSON to the JSON-encoded JWK for the mosaic-fed provisioner.',
+      );
+    }
+    if (!rootCertPath) {
+      throw new CaServiceError(
+        'STEP_CA_ROOT_CERT_PATH is not set',
+        'Set STEP_CA_ROOT_CERT_PATH to the absolute path of the step-ca root CA certificate PEM file.',
+      );
+    }
+
+    // Parse JWK once — do NOT store the raw JSON string as a class field
+    let jwk: JwkKey;
+    try {
+      jwk = JSON.parse(provisionerKeyJson) as JwkKey;
+    } catch (err) {
+      throw new CaServiceError(
+        'STEP_CA_PROVISIONER_KEY_JSON is not valid JSON',
+        'Set STEP_CA_PROVISIONER_KEY_JSON to the JSON-serialised JWK object for the mosaic-fed provisioner.',
+        err,
+      );
+    }
+
+    // Derive algorithm from JWK metadata
+    const jwtAlg = algFromJwk(jwk);
+    const kid = jwk.kid ?? 'mosaic-fed';
+
+    // Import the JWK into a native KeyObject — fail loudly if it cannot be loaded.
+    // We do this synchronously here by calling the async importJWK via a blocking workaround.
+    // Actually importJWK is async, so we store it for use during token building.
+    // We keep the raw jwk object for later async import inside buildOtt.
+    // NOTE: We do NOT store provisionerKeyJson string as a class field.
+    this.jwk = jwk;
+    this.jwtAlg = jwtAlg;
+    this.kid = kid;
+
+    this.caUrl = caUrl;
+    this.rootCertPath = rootCertPath;
+
+    // Read the root cert and pin it for all HTTPS connections.
+    let rootCert: string;
+    try {
+      rootCert = fs.readFileSync(this.rootCertPath, 'utf8');
+    } catch (err) {
+      throw new CaServiceError(
+        `Cannot read STEP_CA_ROOT_CERT_PATH: ${rootCertPath}`,
+        'Ensure the file exists and is readable by the gateway process.',
+        err,
+      );
+    }
+
+    this.httpsAgent = new https.Agent({
+      ca: rootCert,
+      rejectUnauthorized: true,
+    });
+
+    this.logger.log(`CaService initialised — CA URL: ${this.caUrl}`);
+  }
+
+  /**
+   * Lazily import the private key from JWK on first use.
+   * The key is cached in cachedPrivateKey after first import.
+   */
+  private async getPrivateKey(): Promise<crypto.KeyObject> {
+    if (this.cachedPrivateKey !== null) return this.cachedPrivateKey;
+    try {
+      const key = await importJWK(this.jwk, this.jwtAlg);
+      // importJWK returns KeyLike (crypto.KeyObject | Uint8Array) — in Node.js it's KeyObject
+      this.cachedPrivateKey = key as unknown as crypto.KeyObject;
+      return this.cachedPrivateKey;
+    } catch (err) {
+      throw new CaServiceError(
+        'Failed to import STEP_CA_PROVISIONER_KEY_JSON as a cryptographic key',
+        'Ensure STEP_CA_PROVISIONER_KEY_JSON contains a valid JWK private key (EC P-256/P-384 or RSA).',
+        err,
+      );
+    }
+  }
+
+  /**
+   * Build the JWK-provisioner OTT signed with the provisioner private key.
+   * Algorithm is derived from the JWK kty/crv fields.
+   */
+  private async buildOtt(params: {
+    csrPem: string;
+    grantId: string;
+    subjectUserId: string;
+    ttlSeconds: number;
+    csrCn: string;
+  }): Promise<string> {
+    const { csrPem, grantId, subjectUserId, ttlSeconds, csrCn } = params;
+
+    // Validate UUID shape for grant id and subject user id
+    if (!UUID_RE.test(grantId)) {
+      throw new CaServiceError(
+        `grantId is not a valid UUID: ${grantId}`,
+        'Provide a valid UUID (RFC 4122) for grantId.',
+        undefined,
+        'INVALID_GRANT_ID',
+      );
+    }
+    if (!UUID_RE.test(subjectUserId)) {
+      throw new CaServiceError(
+        `subjectUserId is not a valid UUID: ${subjectUserId}`,
+        'Provide a valid UUID (RFC 4122) for subjectUserId.',
+        undefined,
+        'INVALID_GRANT_ID',
+      );
+    }
+
+    const sha = csrFingerprint(csrPem);
+    const now = Math.floor(Date.now() / 1000);
+    const privateKey = await this.getPrivateKey();
+
+    const ott = await new SignJWT({
+      iss: this.kid,
+      sub: csrCn, // M1: set sub to identity from CSR CN
+      aud: [`${this.caUrl}/1.0/sign`],
+      iat: now,
+      nbf: now - 30, // 30 s clock-skew tolerance
+      exp: now + Math.min(ttlSeconds, 3600), // OTT validity ≤ 1 h
+      jti: crypto.randomUUID(), // M2: unique token ID
+      // step.sha is the canonical field name used in the template — M3: keep only step.sha
+      step: { sha },
+      // Mosaic custom claims consumed by federation.tpl
+      mosaic_grant_id: grantId,
+      mosaic_subject_user_id: subjectUserId,
+    })
+      .setProtectedHeader({ alg: this.jwtAlg, typ: 'JWT', kid: this.kid })
+      .sign(privateKey);
+
+    return ott;
+  }
+
+  /**
+   * Validate a PEM-encoded CSR using @peculiar/x509.
+   * Verifies the self-signature, key type/size, and signature algorithm.
+   * Optionally verifies that the CSR's SANs match the expected set.
+   *
+   * Throws CaServiceError with code 'INVALID_CSR' on failure.
+   */
+  private async validateCsr(pem: string, expectedSans?: string[]): Promise<string> {
+    let csr: Pkcs10CertificateRequest;
+    try {
+      csr = new Pkcs10CertificateRequest(pem);
+    } catch (err) {
+      throw new CaServiceError(
+        'Failed to parse CSR PEM as a valid PKCS#10 certificate request',
+        'Provide a valid PEM-encoded PKCS#10 CSR.',
+        err,
+        'INVALID_CSR',
+      );
+    }
+
+    // Verify self-signature
+    let valid: boolean;
+    try {
+      valid = await csr.verify();
+    } catch (err) {
+      throw new CaServiceError(
+        'CSR signature verification threw an error',
+        'The CSR self-signature could not be verified. Ensure the CSR is properly formed.',
+        err,
+        'INVALID_CSR',
+      );
+    }
+    if (!valid) {
+      throw new CaServiceError(
+        'CSR self-signature is invalid',
+        'The CSR must be self-signed with the corresponding private key.',
+        undefined,
+        'INVALID_CSR',
+      );
+    }
+
+    // Validate signature algorithm — reject MD5 and SHA-1
+    // signatureAlgorithm is HashedAlgorithm which extends Algorithm.
+    // Cast through unknown to access .name and .hash.name without DOM lib globals.
+    const sigAlgAny = csr.signatureAlgorithm as unknown as {
+      name?: string;
+      hash?: { name?: string };
+    };
+    const sigAlgName = (sigAlgAny.name ?? '').toLowerCase();
+    const hashName = (sigAlgAny.hash?.name ?? '').toLowerCase();
+    if (
+      sigAlgName.includes('md5') ||
+      sigAlgName.includes('sha1') ||
+      hashName === 'sha-1' ||
+      hashName === 'sha1'
+    ) {
+      throw new CaServiceError(
+        `CSR uses a forbidden signature algorithm: ${sigAlgAny.name ?? 'unknown'}`,
+        'Use SHA-256 or stronger. MD5 and SHA-1 are not permitted.',
+        undefined,
+        'INVALID_CSR',
+      );
+    }
+
+    // Validate public key algorithm and strength via the algorithm descriptor on the key.
+    // csr.publicKey.algorithm is type Algorithm (WebCrypto) — use name-based checks.
+    // We cast to an extended interface to access curve/modulus info without DOM globals.
+    const pubKeyAlgo = csr.publicKey.algorithm as {
+      name: string;
+      namedCurve?: string;
+      modulusLength?: number;
+    };
+    const keyAlgoName = pubKeyAlgo.name;
+
+    if (keyAlgoName === 'RSASSA-PKCS1-v1_5' || keyAlgoName === 'RSA-PSS') {
+      const modulusLength = pubKeyAlgo.modulusLength ?? 0;
+      if (modulusLength < 2048) {
+        throw new CaServiceError(
+          `CSR RSA key is too short: ${modulusLength} bits (minimum 2048)`,
+          'Use an RSA key of at least 2048 bits.',
+          undefined,
+          'INVALID_CSR',
+        );
+      }
+    } else if (keyAlgoName === 'ECDSA') {
+      const namedCurve = pubKeyAlgo.namedCurve ?? '';
+      const allowedCurves = new Set(['P-256', 'P-384']);
+      if (!allowedCurves.has(namedCurve)) {
+        throw new CaServiceError(
+          `CSR EC key uses disallowed curve: ${namedCurve}`,
+          'Use EC P-256 or P-384. Other curves are not permitted.',
+          undefined,
+          'INVALID_CSR',
+        );
+      }
+    } else if (keyAlgoName === 'Ed25519') {
+      // Ed25519 is explicitly allowed
+    } else {
+      throw new CaServiceError(
+        `CSR uses unsupported key algorithm: ${keyAlgoName}`,
+        'Use EC (P-256/P-384), Ed25519, or RSA (≥2048 bit) keys.',
+        undefined,
+        'INVALID_CSR',
+      );
+    }
+
+    // Extract SANs if expectedSans provided
+    if (expectedSans && expectedSans.length > 0) {
+      // Get SANs from CSR extensions
+      const sanExtension = csr.extensions?.find(
+        (ext) => ext.type === '2.5.29.17', // Subject Alternative Name OID
+      );
+      const csrSans: string[] = [];
+      if (sanExtension) {
+        // Parse the raw SAN extension — store as stringified for comparison
+        // @peculiar/x509 exposes SANs through the parsed extension
+        const sanExt = sanExtension as { names?: Array<{ type: string; value: string }> };
+        if (sanExt.names) {
+          for (const name of sanExt.names) {
+            csrSans.push(name.value);
+          }
+        }
+      }
+
+      const csrSanSet = new Set(csrSans);
+      const expectedSanSet = new Set(expectedSans);
+      const missing = expectedSans.filter((s) => !csrSanSet.has(s));
+      const extra = csrSans.filter((s) => !expectedSanSet.has(s));
+
+      if (missing.length > 0 || extra.length > 0) {
+        throw new CaServiceError(
+          `CSR SANs do not match expected set. Missing: [${missing.join(', ')}], Extra: [${extra.join(', ')}]`,
+          'The CSR must include exactly the SANs specified in the issuance request.',
+          undefined,
+          'INVALID_CSR',
+        );
+      }
+    }
+
+    // Return the CN from the CSR subject for use as JWT sub
+    const cn = csr.subjectName.getField('CN')?.[0] ?? '';
+    return cn;
+  }
+
+  /**
+   * Submit a CSR to step-ca and return the issued certificate.
+   *
+   * Throws `CaServiceError` on any failure (network, auth, malformed input).
+   * Never silently swallows errors — fail-loud is a hard contract per M2-02 review.
+   */
+  async issueCert(req: IssueCertRequestDto): Promise<IssuedCertDto> {
+    // Clamp TTL to 15-minute maximum (H2)
+    const ttl = Math.min(req.ttlSeconds ?? 300, 900);
+
+    this.logger.debug(
+      `issueCert — grantId=${req.grantId} subjectUserId=${req.subjectUserId} ttl=${ttl}s`,
+    );
+
+    // Validate CSR — real cryptographic validation (H3)
+    const csrCn = await this.validateCsr(req.csrPem);
+
+    const ott = await this.buildOtt({
+      csrPem: req.csrPem,
+      grantId: req.grantId,
+      subjectUserId: req.subjectUserId,
+      ttlSeconds: ttl,
+      csrCn,
+    });
+
+    const signUrl = `${this.caUrl}/1.0/sign`;
+    const requestBody = {
+      csr: req.csrPem,
+      ott,
+      validity: {
+        duration: `${ttl}s`,
+      },
+    };
+
+    this.logger.debug(`Posting CSR to ${signUrl}`);
+    const response = await httpsPost(signUrl, requestBody, this.httpsAgent);
+
+    if (!response.crt) {
+      throw new CaServiceError(
+        'step-ca sign response missing the "crt" field',
+        'This is unexpected — the step-ca instance may be misconfigured or running an incompatible version.',
+      );
+    }
+
+    // Build certChainPem: prefer certChain array, fall back to ca field, fall back to crt alone.
+    let certChainPem: string;
+    if (response.certChain && response.certChain.length > 0) {
+      certChainPem = response.certChain.join('\n');
+    } else if (response.ca) {
+      certChainPem = response.crt + '\n' + response.ca;
+    } else {
+      certChainPem = response.crt;
+    }
+
+    const serialNumber = extractSerial(response.crt);
+
+    this.logger.log(`Certificate issued — serial=${serialNumber} grantId=${req.grantId}`);
+
+    const result = new IssuedCertDto();
+    result.certPem = response.crt;
+    result.certChainPem = certChainPem;
+    result.serialNumber = serialNumber;
+    return result;
+  }
+}

apps/gateway/src/federation/federation.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { CaService } from './ca.service.js';
+
+@Module({
+  providers: [CaService],
+  exports: [CaService],
+})
+export class FederationModule {}

apps/gateway/src/federation/peer-key.util.ts

@@ -0,0 +1,9 @@
+import { seal, unseal } from '@mosaicstack/auth';
+
+export function sealClientKey(privateKeyPem: string): string {
+  return seal(privateKeyPem);
+}
+
+export function unsealClientKey(sealedKey: string): string {
+  return unseal(sealedKey);
+}

apps/gateway/src/federation/scope-schema.spec.ts

@@ -0,0 +1,187 @@
+/**
+ * Unit tests for FederationScopeSchema and parseFederationScope.
+ *
+ * Coverage:
+ *  - Valid: minimal scope
+ *  - Valid: full PRD §8.1 example
+ *  - Valid: resources + excluded_resources (no overlap)
+ *  - Invalid: empty resources
+ *  - Invalid: unknown resource value
+ *  - Invalid: resources / excluded_resources intersection
+ *  - Invalid: filter key not in resources
+ *  - Invalid: max_rows_per_query = 0
+ *  - Invalid: max_rows_per_query = 10001
+ *  - Invalid: not an object / null
+ *  - Defaults: include_personal defaults to true; excluded_resources defaults to []
+ *  - Sentinel: console.warn fires for sensitive resources
+ */
+
+import { describe, it, expect, vi, afterEach } from 'vitest';
+import {
+  parseFederationScope,
+  FederationScopeError,
+  FederationScopeSchema,
+} from './scope-schema.js';
+
+afterEach(() => {
+  vi.restoreAllMocks();
+});
+
+describe('parseFederationScope — valid inputs', () => {
+  it('accepts a minimal scope (resources + max_rows_per_query only)', () => {
+    const scope = parseFederationScope({
+      resources: ['tasks'],
+      max_rows_per_query: 100,
+    });
+    expect(scope.resources).toEqual(['tasks']);
+    expect(scope.max_rows_per_query).toBe(100);
+    expect(scope.excluded_resources).toEqual([]);
+    expect(scope.filters).toBeUndefined();
+  });
+
+  it('accepts the full PRD §8.1 example', () => {
+    const scope = parseFederationScope({
+      resources: ['tasks', 'notes', 'memory'],
+      filters: {
+        tasks: { include_teams: ['team_uuid_1', 'team_uuid_2'], include_personal: true },
+        notes: { include_personal: true, include_teams: [] },
+        memory: { include_personal: true },
+      },
+      excluded_resources: ['credentials', 'api_keys'],
+      max_rows_per_query: 500,
+    });
+    expect(scope.resources).toEqual(['tasks', 'notes', 'memory']);
+    expect(scope.excluded_resources).toEqual(['credentials', 'api_keys']);
+    expect(scope.filters?.tasks?.include_teams).toEqual(['team_uuid_1', 'team_uuid_2']);
+    expect(scope.max_rows_per_query).toBe(500);
+  });
+
+  it('accepts a scope with excluded_resources and no filter overlap', () => {
+    const scope = parseFederationScope({
+      resources: ['tasks', 'notes'],
+      excluded_resources: ['memory'],
+      max_rows_per_query: 250,
+    });
+    expect(scope.resources).toEqual(['tasks', 'notes']);
+    expect(scope.excluded_resources).toEqual(['memory']);
+  });
+});
+
+describe('parseFederationScope — defaults', () => {
+  it('defaults excluded_resources to []', () => {
+    const scope = parseFederationScope({ resources: ['tasks'], max_rows_per_query: 1 });
+    expect(scope.excluded_resources).toEqual([]);
+  });
+
+  it('defaults include_personal to true when filter is provided without it', () => {
+    const scope = parseFederationScope({
+      resources: ['tasks'],
+      filters: { tasks: { include_teams: ['t1'] } },
+      max_rows_per_query: 10,
+    });
+    expect(scope.filters?.tasks?.include_personal).toBe(true);
+  });
+});
+
+describe('parseFederationScope — invalid inputs', () => {
+  it('throws FederationScopeError for empty resources array', () => {
+    expect(() => parseFederationScope({ resources: [], max_rows_per_query: 100 })).toThrow(
+      FederationScopeError,
+    );
+  });
+
+  it('throws for unknown resource value in resources', () => {
+    expect(() =>
+      parseFederationScope({ resources: ['unknown_resource'], max_rows_per_query: 100 }),
+    ).toThrow(FederationScopeError);
+  });
+
+  it('throws when resources and excluded_resources intersect', () => {
+    expect(() =>
+      parseFederationScope({
+        resources: ['tasks', 'memory'],
+        excluded_resources: ['memory'],
+        max_rows_per_query: 100,
+      }),
+    ).toThrow(FederationScopeError);
+  });
+
+  it('throws when filters references a resource not in resources', () => {
+    expect(() =>
+      parseFederationScope({
+        resources: ['tasks'],
+        filters: { notes: { include_personal: true } },
+        max_rows_per_query: 100,
+      }),
+    ).toThrow(FederationScopeError);
+  });
+
+  it('throws for max_rows_per_query = 0', () => {
+    expect(() => parseFederationScope({ resources: ['tasks'], max_rows_per_query: 0 })).toThrow(
+      FederationScopeError,
+    );
+  });
+
+  it('throws for max_rows_per_query = 10001', () => {
+    expect(() => parseFederationScope({ resources: ['tasks'], max_rows_per_query: 10001 })).toThrow(
+      FederationScopeError,
+    );
+  });
+
+  it('throws for null input', () => {
+    expect(() => parseFederationScope(null)).toThrow(FederationScopeError);
+  });
+
+  it('throws for non-object input (string)', () => {
+    expect(() => parseFederationScope('not-an-object')).toThrow(FederationScopeError);
+  });
+});
+
+describe('parseFederationScope — sentinel warning', () => {
+  it('emits console.warn when resources includes "credentials"', () => {
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+    parseFederationScope({
+      resources: ['tasks', 'credentials'],
+      max_rows_per_query: 100,
+    });
+    expect(warnSpy).toHaveBeenCalledWith(
+      expect.stringContaining(
+        '[FederationScope] WARNING: scope grants sensitive resource "credentials"',
+      ),
+    );
+  });
+
+  it('emits console.warn when resources includes "api_keys"', () => {
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+    parseFederationScope({
+      resources: ['tasks', 'api_keys'],
+      max_rows_per_query: 100,
+    });
+    expect(warnSpy).toHaveBeenCalledWith(
+      expect.stringContaining(
+        '[FederationScope] WARNING: scope grants sensitive resource "api_keys"',
+      ),
+    );
+  });
+
+  it('does NOT emit console.warn for non-sensitive resources', () => {
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
+    parseFederationScope({ resources: ['tasks', 'notes', 'memory'], max_rows_per_query: 100 });
+    expect(warnSpy).not.toHaveBeenCalled();
+  });
+});
+
+describe('FederationScopeSchema — boundary values', () => {
+  it('accepts max_rows_per_query = 1 (lower bound)', () => {
+    const result = FederationScopeSchema.safeParse({ resources: ['tasks'], max_rows_per_query: 1 });
+    expect(result.success).toBe(true);
+  });
+
+  it('accepts max_rows_per_query = 10000 (upper bound)', () => {
+    const result = FederationScopeSchema.safeParse({
+      resources: ['tasks'],
+      max_rows_per_query: 10000,
+    });
+    expect(result.success).toBe(true);
+  });
+});

apps/gateway/src/federation/scope-schema.ts

@@ -0,0 +1,147 @@
+/**
+ * Federation grant scope schema and validator.
+ *
+ * Source of truth: docs/federation/PRD.md §8.1
+ *
+ * This module is intentionally pure — no DB, no NestJS, no CA wiring.
+ * It is reusable from grant CRUD (M2-06) and scope enforcement (M3+).
+ */
+
+import { z } from 'zod';
+
+// ---------------------------------------------------------------------------
+// Allowlist of federation resources (canonical — M3+ will extend this list)
+// ---------------------------------------------------------------------------
+export const FEDERATION_RESOURCE_VALUES = [
+  'tasks',
+  'notes',
+  'memory',
+  'credentials',
+  'api_keys',
+] as const;
+
+export type FederationResource = (typeof FEDERATION_RESOURCE_VALUES)[number];
+
+/**
+ * Sensitive resources require explicit admin approval (PRD §8.4).
+ * The parser warns when these appear in `resources`; M2-06 grant CRUD
+ * will add a hard gate on top of this warning.
+ */
+const SENSITIVE_RESOURCES: ReadonlySet<FederationResource> = new Set(['credentials', 'api_keys']);
+
+// ---------------------------------------------------------------------------
+// Sub-schemas
+// ---------------------------------------------------------------------------
+
+const ResourceArraySchema = z
+  .array(z.enum(FEDERATION_RESOURCE_VALUES))
+  .nonempty({ message: 'resources must contain at least one value' })
+  .refine((arr) => new Set(arr).size === arr.length, {
+    message: 'resources must not contain duplicate values',
+  });
+
+const ResourceFilterSchema = z.object({
+  include_teams: z.array(z.string()).optional(),
+  include_personal: z.boolean().default(true),
+});
+
+// ---------------------------------------------------------------------------
+// Top-level schema
+// ---------------------------------------------------------------------------
+
+export const FederationScopeSchema = z
+  .object({
+    resources: ResourceArraySchema,
+
+    excluded_resources: z
+      .array(z.enum(FEDERATION_RESOURCE_VALUES))
+      .default([])
+      .refine((arr) => new Set(arr).size === arr.length, {
+        message: 'excluded_resources must not contain duplicate values',
+      }),
+
+    filters: z.record(z.string(), ResourceFilterSchema).optional(),
+
+    max_rows_per_query: z
+      .number()
+      .int({ message: 'max_rows_per_query must be an integer' })
+      .min(1, { message: 'max_rows_per_query must be at least 1' })
+      .max(10000, { message: 'max_rows_per_query must be at most 10000' }),
+  })
+  .superRefine((data, ctx) => {
+    const resourceSet = new Set(data.resources);
+
+    // Intersection guard: a resource cannot be both granted and excluded
+    for (const r of data.excluded_resources) {
+      if (resourceSet.has(r)) {
+        ctx.addIssue({
+          code: z.ZodIssueCode.custom,
+          message: `Resource "${r}" appears in both resources and excluded_resources`,
+          path: ['excluded_resources'],
+        });
+      }
+    }
+
+    // Filter keys must be a subset of resources
+    if (data.filters) {
+      for (const key of Object.keys(data.filters)) {
+        if (!resourceSet.has(key as FederationResource)) {
+          ctx.addIssue({
+            code: z.ZodIssueCode.custom,
+            message: `filters key "${key}" references a resource not present in resources`,
+            path: ['filters', key],
+          });
+        }
+      }
+    }
+  });
+
+export type FederationScope = z.infer<typeof FederationScopeSchema>;
+
+// ---------------------------------------------------------------------------
+// Error class
+// ---------------------------------------------------------------------------
+
+export class FederationScopeError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'FederationScopeError';
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Typed parser
+// ---------------------------------------------------------------------------
+
+/**
+ * Parse and validate an unknown value as a FederationScope.
+ *
+ * Throws `FederationScopeError` with aggregated Zod issues on failure.
+ *
+ * Emits `console.warn` when sensitive resources (`credentials`, `api_keys`)
+ * are present in `resources` — per PRD §8.4, these require explicit admin
+ * approval. M2-06 grant CRUD will add a hard gate on top of this warning.
+ */
+export function parseFederationScope(input: unknown): FederationScope {
+  const result = FederationScopeSchema.safeParse(input);
+
+  if (!result.success) {
+    const issues = result.error.issues
+      .map((e) => `  - [${e.path.join('.') || 'root'}] ${e.message}`)
+      .join('\n');
+    throw new FederationScopeError(`Invalid federation scope:\n${issues}`);
+  }
+
+  const scope = result.data;
+
+  // Sentinel warning for sensitive resources (PRD §8.4)
+  for (const resource of scope.resources) {
+    if (SENSITIVE_RESOURCES.has(resource)) {
+      console.warn(
+        `[FederationScope] WARNING: scope grants sensitive resource "${resource}". Per PRD §8.4 this requires explicit admin approval and is logged.`,
+      );
+    }
+  }
+
+  return scope;
+}

apps/gateway/src/gc/gc.module.ts

@@ -1,5 +1,5 @@
 import { Module, type OnApplicationShutdown, Inject } from '@nestjs/common';
-import { createQueue, type QueueHandle } from '@mosaic/queue';
+import { createQueue, type QueueHandle } from '@mosaicstack/queue';
 import { SessionGCService } from './session-gc.service.js';
 import { REDIS } from './gc.tokens.js';
 

apps/gateway/src/gc/session-gc.service.spec.ts

@@ -1,7 +1,7 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest';
 import { Logger } from '@nestjs/common';
-import type { QueueHandle } from '@mosaic/queue';
-import type { LogService } from '@mosaic/log';
+import type { QueueHandle } from '@mosaicstack/queue';
+import type { LogService } from '@mosaicstack/log';
 import { SessionGCService } from './session-gc.service.js';
 
 type MockRedis = {

apps/gateway/src/gc/session-gc.service.ts

@@ -1,6 +1,6 @@
 import { Inject, Injectable, Logger, type OnModuleInit } from '@nestjs/common';
-import type { QueueHandle } from '@mosaic/queue';
-import type { LogService } from '@mosaic/log';
+import type { QueueHandle } from '@mosaicstack/queue';
+import type { LogService } from '@mosaicstack/log';
 import { LOG_SERVICE } from '../log/log.tokens.js';
 import { REDIS } from './gc.tokens.js';
 

apps/gateway/src/log/log.controller.ts

@@ -1,5 +1,5 @@
 import { Body, Controller, Get, Inject, Param, Post, Query, UseGuards } from '@nestjs/common';
-import type { LogService } from '@mosaic/log';
+import type { LogService } from '@mosaicstack/log';
 import { LOG_SERVICE } from './log.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import type { IngestLogDto, QueryLogsDto } from './log.dto.js';

apps/gateway/src/log/log.module.ts

@@ -1,6 +1,6 @@
 import { Global, Module } from '@nestjs/common';
-import { createLogService, type LogService } from '@mosaic/log';
-import type { Db } from '@mosaic/db';
+import { createLogService, type LogService } from '@mosaicstack/log';
+import type { Db } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 import { LOG_SERVICE } from './log.tokens.js';
 import { LogController } from './log.controller.js';

apps/gateway/src/log/summarization.service.ts

@@ -1,11 +1,11 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import type { LogService } from '@mosaic/log';
-import type { Memory } from '@mosaic/memory';
+import type { LogService } from '@mosaicstack/log';
+import type { Memory } from '@mosaicstack/memory';
 import { LOG_SERVICE } from './log.tokens.js';
 import { MEMORY } from '../memory/memory.tokens.js';
 import { EmbeddingService } from '../memory/embedding.service.js';
-import type { Db } from '@mosaic/db';
-import { sql, summarizationJobs } from '@mosaic/db';
+import type { Db } from '@mosaicstack/db';
+import { sql, summarizationJobs } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 
 const SUMMARIZATION_PROMPT = `You are a knowledge extraction assistant. Given the following agent interaction logs, extract the key decisions, learnings, and patterns. Output a concise summary (2-4 sentences) that captures the most important information for future reference. Focus on actionable insights, not raw events.

apps/gateway/src/main.ts

@@ -1,5 +1,13 @@
+#!/usr/bin/env node
 import { config } from 'dotenv';
-import { resolve } from 'node:path';
+import { existsSync } from 'node:fs';
+import { resolve, join } from 'node:path';
+import { homedir } from 'node:os';
+
+// Load .env from daemon config dir (global install / daemon mode).
+// Loaded first so monorepo .env can override for local dev.
+const daemonEnv = join(homedir(), '.config', 'mosaic', 'gateway', '.env');
+if (existsSync(daemonEnv)) config({ path: daemonEnv });
 
 // Load .env from monorepo root (cwd is apps/gateway when run via pnpm filter)
 config({ path: resolve(process.cwd(), '../../.env') });
@@ -11,11 +19,13 @@ import { NestFactory } from '@nestjs/core';
 import { Logger, ValidationPipe } from '@nestjs/common';
 import { FastifyAdapter, type NestFastifyApplication } from '@nestjs/platform-fastify';
 import helmet from '@fastify/helmet';
-import { listSsoStartupWarnings } from '@mosaic/auth';
+import { listSsoStartupWarnings } from '@mosaicstack/auth';
+import { loadConfig } from '@mosaicstack/config';
 import { AppModule } from './app.module.js';
 import { mountAuthHandler } from './auth/auth.controller.js';
 import { mountMcpHandler } from './mcp/mcp.controller.js';
 import { McpService } from './mcp/mcp.service.js';
+import { detectAndAssertTier, TierDetectionError } from '@mosaicstack/storage';
 
 async function bootstrap(): Promise<void> {
   const logger = new Logger('Bootstrap');
@@ -24,6 +34,20 @@ async function bootstrap(): Promise<void> {
     throw new Error('BETTER_AUTH_SECRET is required');
   }
 
+  // Pre-flight: assert all external services required by the configured tier
+  // are reachable. Runs before NestFactory.create() so failures are visible
+  // immediately with actionable remediation hints.
+  const mosaicConfig = loadConfig();
+  try {
+    await detectAndAssertTier(mosaicConfig);
+  } catch (err) {
+    if (err instanceof TierDetectionError) {
+      logger.error(`Tier detection failed: ${err.message}`);
+      logger.error(`Remediation: ${err.remediation}`);
+    }
+    throw err;
+  }
+
   for (const warning of listSsoStartupWarnings()) {
     logger.warn(warning);
   }
@@ -51,7 +75,7 @@ async function bootstrap(): Promise<void> {
   mountAuthHandler(app);
   mountMcpHandler(app, app.get(McpService));
 
-  const port = Number(process.env['GATEWAY_PORT'] ?? 4000);
+  const port = Number(process.env['GATEWAY_PORT'] ?? 14242);
   await app.listen(port, '0.0.0.0');
   logger.log(`Gateway listening on port ${port}`);
 }

apps/gateway/src/mcp/mcp.controller.ts

@@ -1,7 +1,7 @@
 import type { IncomingMessage, ServerResponse } from 'node:http';
 import { Logger } from '@nestjs/common';
 import { fromNodeHeaders } from 'better-auth/node';
-import type { Auth } from '@mosaic/auth';
+import type { Auth } from '@mosaicstack/auth';
 import type { NestFastifyApplication } from '@nestjs/platform-fastify';
 import type { McpService } from './mcp.service.js';
 import { AUTH } from '../auth/auth.tokens.js';

apps/gateway/src/mcp/mcp.service.ts

@@ -3,8 +3,8 @@ import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
 import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
 import { randomUUID } from 'node:crypto';
 import { z } from 'zod';
-import type { Brain } from '@mosaic/brain';
-import type { Memory } from '@mosaic/memory';
+import type { Brain } from '@mosaicstack/brain';
+import type { Memory } from '@mosaicstack/memory';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { MEMORY } from '../memory/memory.tokens.js';
 import { EmbeddingService } from '../memory/embedding.service.js';

apps/gateway/src/memory/embedding.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from '@nestjs/common';
-import type { EmbeddingProvider } from '@mosaic/memory';
+import type { EmbeddingProvider } from '@mosaicstack/memory';
 
 // ---------------------------------------------------------------------------
 // Environment-driven configuration

apps/gateway/src/memory/memory.controller.ts

@@ -12,7 +12,7 @@ import {
   Query,
   UseGuards,
 } from '@nestjs/common';
-import type { Memory } from '@mosaic/memory';
+import type { Memory } from '@mosaicstack/memory';
 import { MEMORY } from './memory.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/memory/memory.module.ts

@@ -5,10 +5,10 @@ import {
   createMemoryAdapter,
   type MemoryAdapter,
   type MemoryConfig,
-} from '@mosaic/memory';
-import type { Db } from '@mosaic/db';
-import type { StorageAdapter } from '@mosaic/storage';
-import type { MosaicConfig } from '@mosaic/config';
+} from '@mosaicstack/memory';
+import type { Db } from '@mosaicstack/db';
+import type { StorageAdapter } from '@mosaicstack/storage';
+import type { MosaicConfig } from '@mosaicstack/config';
 import { MOSAIC_CONFIG } from '../config/config.module.js';
 import { DB, STORAGE_ADAPTER } from '../database/database.module.js';
 import { MEMORY } from './memory.tokens.js';

apps/gateway/src/missions/missions.controller.ts

@@ -12,7 +12,7 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/plugin/plugin.module.ts

@@ -6,8 +6,8 @@ import {
   type OnModuleDestroy,
   type OnModuleInit,
 } from '@nestjs/common';
-import { DiscordPlugin } from '@mosaic/discord-plugin';
-import { TelegramPlugin } from '@mosaic/telegram-plugin';
+import { DiscordPlugin } from '@mosaicstack/discord-plugin';
+import { TelegramPlugin } from '@mosaicstack/telegram-plugin';
 import { PluginService } from './plugin.service.js';
 import type { IChannelPlugin } from './plugin.interface.js';
 import { PLUGIN_REGISTRY } from './plugin.tokens.js';
@@ -48,7 +48,7 @@ class TelegramChannelPluginAdapter implements IChannelPlugin {
   }
 }
 
-const DEFAULT_GATEWAY_URL = 'http://localhost:4000';
+const DEFAULT_GATEWAY_URL = 'http://localhost:14242';
 
 function createPluginRegistry(): IChannelPlugin[] {
   const plugins: IChannelPlugin[] = [];

apps/gateway/src/preferences/preferences.service.spec.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, vi } from 'vitest';
 import { PreferencesService, PLATFORM_DEFAULTS, IMMUTABLE_KEYS } from './preferences.service.js';
-import type { Db } from '@mosaic/db';
+import type { Db } from '@mosaicstack/db';
 
 /**
  * Build a mock Drizzle DB where the select chain supports:

apps/gateway/src/preferences/preferences.service.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import { eq, and, sql, type Db, preferences as preferencesTable } from '@mosaic/db';
+import { eq, and, sql, type Db, preferences as preferencesTable } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 
 export const PLATFORM_DEFAULTS: Record<string, unknown> = {

apps/gateway/src/preferences/system-override.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from '@nestjs/common';
-import { createQueue, type QueueHandle } from '@mosaic/queue';
+import { createQueue, type QueueHandle } from '@mosaicstack/queue';
 
 const SESSION_SYSTEM_KEY = (sessionId: string) => `mosaic:session:${sessionId}:system`;
 const SESSION_SYSTEM_FRAGMENTS_KEY = (sessionId: string) =>

apps/gateway/src/projects/projects.controller.ts

@@ -13,7 +13,7 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/queue/queue.module.ts

@@ -1,6 +1,6 @@
 import { Global, Module } from '@nestjs/common';
-import { createQueueAdapter, type QueueAdapter } from '@mosaic/queue';
-import type { MosaicConfig } from '@mosaic/config';
+import { createQueueAdapter, type QueueAdapter } from '@mosaicstack/queue';
+import type { MosaicConfig } from '@mosaicstack/config';
 import { MOSAIC_CONFIG } from '../config/config.module.js';
 import { QueueService } from './queue.service.js';
 

apps/gateway/src/queue/queue.service.ts

@@ -7,7 +7,7 @@ import {
   type OnModuleDestroy,
 } from '@nestjs/common';
 import { Queue, Worker, type Job, type ConnectionOptions } from 'bullmq';
-import type { LogService } from '@mosaic/log';
+import type { LogService } from '@mosaicstack/log';
 import { LOG_SERVICE } from '../log/log.tokens.js';
 import type { JobDto, JobStatus } from './queue-admin.dto.js';
 

apps/gateway/src/reload/reload.controller.ts

@@ -1,5 +1,5 @@
 import { Controller, HttpCode, HttpStatus, Inject, Post, UseGuards } from '@nestjs/common';
-import type { SystemReloadPayload } from '@mosaic/types';
+import type { SystemReloadPayload } from '@mosaicstack/types';
 import { AdminGuard } from '../admin/admin.guard.js';
 import { ChatGateway } from '../chat/chat.gateway.js';
 import { ReloadService } from './reload.service.js';

apps/gateway/src/reload/reload.service.ts

@@ -5,7 +5,7 @@ import {
   type OnApplicationBootstrap,
   type OnApplicationShutdown,
 } from '@nestjs/common';
-import type { SystemReloadPayload } from '@mosaic/types';
+import type { SystemReloadPayload } from '@mosaicstack/types';
 import { CommandRegistryService } from '../commands/command-registry.service.js';
 import { isMosaicPlugin } from './mosaic-plugin.interface.js';
 

apps/gateway/src/skills/skills.service.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable } from '@nestjs/common';
-import { eq, type Db, skills } from '@mosaic/db';
+import { eq, type Db, skills } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 
 type Skill = typeof skills.$inferSelect;

apps/gateway/src/tasks/tasks.controller.ts

@@ -14,7 +14,7 @@ import {
   Query,
   UseGuards,
 } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { AuthGuard } from '../auth/auth.guard.js';
 import { CurrentUser } from '../auth/current-user.decorator.js';

apps/gateway/src/workspace/project-bootstrap.service.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import type { Brain } from '@mosaic/brain';
+import type { Brain } from '@mosaicstack/brain';
 import { BRAIN } from '../brain/brain.tokens.js';
 import { PluginService } from '../plugin/plugin.service.js';
 import { WorkspaceService } from './workspace.service.js';

apps/gateway/src/workspace/teams.service.ts

@@ -1,5 +1,5 @@
 import { Inject, Injectable, Logger } from '@nestjs/common';
-import { eq, and, type Db, teams, teamMembers, projects } from '@mosaic/db';
+import { eq, and, type Db, teams, teamMembers, projects } from '@mosaicstack/db';
 import { DB } from '../database/database.module.js';
 
 @Injectable()

apps/gateway/tsconfig.typecheck.json

@@ -4,15 +4,15 @@
     "rootDir": "../..",
     "baseUrl": ".",
     "paths": {
-      "@mosaic/auth": ["../../packages/auth/src/index.ts"],
-      "@mosaic/brain": ["../../packages/brain/src/index.ts"],
-      "@mosaic/coord": ["../../packages/coord/src/index.ts"],
-      "@mosaic/db": ["../../packages/db/src/index.ts"],
-      "@mosaic/log": ["../../packages/log/src/index.ts"],
-      "@mosaic/memory": ["../../packages/memory/src/index.ts"],
-      "@mosaic/types": ["../../packages/types/src/index.ts"],
-      "@mosaic/discord-plugin": ["../../plugins/discord/src/index.ts"],
-      "@mosaic/telegram-plugin": ["../../plugins/telegram/src/index.ts"]
+      "@mosaicstack/auth": ["../../packages/auth/src/index.ts"],
+      "@mosaicstack/brain": ["../../packages/brain/src/index.ts"],
+      "@mosaicstack/coord": ["../../packages/coord/src/index.ts"],
+      "@mosaicstack/db": ["../../packages/db/src/index.ts"],
+      "@mosaicstack/log": ["../../packages/log/src/index.ts"],
+      "@mosaicstack/memory": ["../../packages/memory/src/index.ts"],
+      "@mosaicstack/types": ["../../packages/types/src/index.ts"],
+      "@mosaicstack/discord-plugin": ["../../plugins/discord/src/index.ts"],
+      "@mosaicstack/telegram-plugin": ["../../plugins/telegram/src/index.ts"]
     }
   }
 }

apps/gateway/vitest.config.ts

@@ -1,3 +1,4 @@
+import swc from 'unplugin-swc';
 import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
@@ -5,4 +6,22 @@ export default defineConfig({
     globals: true,
     environment: 'node',
   },
+  plugins: [
+    swc.vite({
+      jsc: {
+        parser: {
+          syntax: 'typescript',
+          decorators: true,
+        },
+        transform: {
+          decoratorMetadata: true,
+          legacyDecorator: true,
+        },
+        target: 'es2022',
+      },
+      module: {
+        type: 'nodenext',
+      },
+    }),
+  ],
 });

apps/web/next.config.ts

@@ -2,7 +2,7 @@ import type { NextConfig } from 'next';
 
 const nextConfig: NextConfig = {
   output: 'standalone',
-  transpilePackages: ['@mosaic/design-tokens'],
+  transpilePackages: ['@mosaicstack/design-tokens'],
 
   // Enable gzip/brotli compression for all responses.
   compress: true,

apps/web/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@mosaic/web",
+  "name": "@mosaicstack/web",
   "version": "0.0.2",
   "private": true,
   "scripts": {
@@ -12,7 +12,7 @@
     "start": "next start"
   },
   "dependencies": {
-    "@mosaic/design-tokens": "workspace:^",
+    "@mosaicstack/design-tokens": "workspace:^",
     "better-auth": "^1.5.5",
     "clsx": "^2.1.0",
     "next": "^16.0.0",

apps/web/playwright.config.ts

@@ -5,9 +5,9 @@ import { defineConfig, devices } from '@playwright/test';
  *
  * Assumes:
  *   - Next.js web app running on http://localhost:3000
- *   - NestJS gateway running on http://localhost:4000
+ *   - NestJS gateway running on http://localhost:14242
  *
- * Run with:   pnpm --filter @mosaic/web test:e2e
+ * Run with:   pnpm --filter @mosaicstack/web test:e2e
  */
 export default defineConfig({
   testDir: './e2e',

apps/web/src/lib/api.ts

@@ -1,4 +1,4 @@
-const GATEWAY_URL = process.env['NEXT_PUBLIC_GATEWAY_URL'] ?? 'http://localhost:4000';
+const GATEWAY_URL = process.env['NEXT_PUBLIC_GATEWAY_URL'] ?? 'http://localhost:14242';
 
 export interface ApiRequestInit extends Omit<RequestInit, 'body'> {
   body?: unknown;