fix: rename all packages from @mosaic/* to @mosaicstack/*

- Updated all package.json name fields and dependency references
- Updated all TypeScript/JavaScript imports
- Updated .woodpecker/publish.yml filters and registry paths
- Updated tools/install.sh scope default
- Updated .npmrc registry paths (worktree + host)
- Enhanced update-checker.ts with checkForAllUpdates() multi-package support
- Updated CLI update command to show table of all packages
- Added KNOWN_PACKAGES, formatAllPackagesTable, getInstallAllCommand
- Marked checkForUpdate() with @deprecated JSDoc

Closes #391

AGENTS.md

@@ -21,10 +21,10 @@ 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/coord`   | Mission coordination            | @mosaicstack/queue               |
 | `packages/cli`     | Unified CLI + Pi TUI            | Ink, Pi SDK                      |
 | `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)