feat: complete framework migration — PowerShell, adapters, guides, profiles, tests

Completes the bootstrap repo migration with remaining files:
- PowerShell scripts (.ps1) for Windows support (bin/ + tools/)
- Runtime adapters (claude, codex, generic, pi)
- Guides (17 .md files) and profiles (domains, tech-stacks, workflows)
- Wizard test suite (6 test files from bootstrap tests/)
- Memory placeholder, audit history

Bootstrap repo (mosaic/bootstrap) is now fully superseded:
- All 335 files accounted for
- 5 build config files (package.json, tsconfig, etc.) not needed —
  monorepo has its own at packages/mosaic/
- skills-local/ superseded by monorepo skills/ with mosaic-* naming
- src/ already lives at packages/mosaic/src/

packages/mosaic/framework/adapters/claude.md

@@ -0,0 +1,17 @@
+# Claude Adapter
+
+Use this adapter when running Claude CLI sessions.
+
+## Required Context
+
+1. `~/.config/mosaic/STANDARDS.md`
+2. `<repo>/AGENTS.md`
+
+## Command Wrapper
+
+Use wrapper commands from `~/.config/mosaic/bin/` for lifecycle rituals.
+
+## Migration Note
+
+Project-local `.claude/commands/*.md` should call `scripts/agent/*.sh` so behavior stays runtime-neutral.
+Guides and tools should resolve to `~/.config/mosaic/guides` and `~/.config/mosaic/tools` (linked into `~/.claude` for compatibility).

packages/mosaic/framework/adapters/codex.md

@@ -0,0 +1,13 @@
+# Codex Adapter
+
+Use this adapter when running Codex CLI sessions.
+
+## Required Context
+
+1. `~/.config/mosaic/STANDARDS.md`
+2. `<repo>/AGENTS.md`
+
+## Runtime Behavior
+
+- Favor repo lifecycle scripts under `scripts/agent/` for start/end rituals.
+- Keep instructions and quality gates aligned with Mosaic standards.

packages/mosaic/framework/adapters/generic.md

@@ -0,0 +1,14 @@
+# Generic Adapter
+
+For runtimes without a first-class adapter yet.
+
+## Required Context
+
+1. Load `~/.config/mosaic/STANDARDS.md`
+2. Load project `AGENTS.md`
+
+## Minimal Contract
+
+- Use `scripts/agent/session-start.sh` at start if present.
+- Use `scripts/agent/session-end.sh` before completion if present.
+- If missing, run equivalent repo commands and report what was executed.

packages/mosaic/framework/adapters/pi.md

@@ -0,0 +1,36 @@
+# Pi Adapter
+
+Use this adapter when running Pi sessions via `mosaic pi`.
+
+## Required Context
+
+1. `~/.config/mosaic/STANDARDS.md`
+2. `<repo>/AGENTS.md`
+
+## Integration
+
+Pi is the native Mosaic agent runtime. The `mosaic pi` launcher:
+
+1. Injects the full runtime contract via `--append-system-prompt`
+2. Loads Mosaic skills via `--skill` flags
+3. Loads the Mosaic extension via `--extension` for lifecycle hooks
+4. Detects active missions and injects initial prompts
+
+## Capabilities vs Other Runtimes
+
+- No permission restrictions (no yolo flag needed)
+- Native thinking levels replace sequential-thinking MCP
+- Native skill discovery compatible with Mosaic SKILL.md format
+- Native extension system for lifecycle hooks (TypeScript, not bash shims)
+- Native session persistence and resume
+- Model-agnostic (Anthropic, OpenAI, Google, Ollama, custom providers)
+
+## Command Wrapper
+
+```bash
+mosaic pi                    # Interactive session
+mosaic pi "Fix the auth bug" # With initial prompt
+mosaic yolo pi               # Identical to mosaic pi
+mosaic coord --pi run        # Coordinator-driven session
+mosaic prdy --pi init        # PRD creation via Pi
+```