feat: integrate framework files into monorepo under packages/mosaic/framework/

Moves all Mosaic framework runtime files from the separate bootstrap repo
into the monorepo as canonical source. The @mosaic/mosaic npm package now
ships the complete framework — bin scripts, runtime configs, tools, and
templates — enabling standalone installation via npm install.

Structure:
  packages/mosaic/framework/
  ├── bin/          28 CLI scripts (mosaic, mosaic-doctor, mosaic-sync-skills, etc.)
  ├── runtime/      Runtime adapters (claude, codex, opencode, pi, mcp)
  ├── tools/        Shell tooling (git, prdy, orchestrator, quality, etc.)
  ├── templates/    Agent and repo templates
  ├── defaults/     Default identity files (AGENTS.md, STANDARDS.md, SOUL.md, etc.)
  ├── install.sh    Legacy bash installer
  └── remote-install.sh  One-liner remote installer

Key files with Pi support and recent fixes:
- bin/mosaic: launch_pi() with skills-local loop
- bin/mosaic-doctor: --fix auto-wiring for all 4 harnesses
- bin/mosaic-sync-skills: Pi as 4th link target, symlink-aware find
- bin/mosaic-link-runtime-assets: Pi settings.json patching
- bin/mosaic-migrate-local-skills: Pi skill roots, symlink find
- runtime/pi/RUNTIME.md + mosaic-extension.ts

Package ships 251 framework files in the npm tarball (278KB compressed).

packages/mosaic/framework/templates/repo/scripts/agent/log-limitation.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+TITLE="${1:-}"
+if [[ -z "$TITLE" ]]; then
+  echo "Usage: $0 \"Short limitation title\"" >&2
+  exit 1
+fi
+
+FILE="EVOLUTION.md"
+if [[ ! -f "$FILE" ]]; then
+  echo "[agent-framework] $FILE not found. Create project-specific limitations log if needed."
+  exit 0
+fi
+
+if command -v rg >/dev/null 2>&1; then
+  last_num=$(rg -o "^### L-[0-9]{3}" "$FILE" | sed 's/^### L-//' | sort -n | tail -1)
+else
+  last_num=$(grep -E "^### L-[0-9]{3}" "$FILE" | sed 's/^### L-//' | sort -n | tail -1)
+fi
+
+if [[ -z "$last_num" ]]; then
+  next_num="001"
+else
+  next_num=$(printf "%03d" $((10#$last_num + 1)))
+fi
+
+entry_id="L-$next_num"
+
+cat <<EOF2
+
+### $entry_id: $TITLE
+
+| Aspect | Details |
+|--------|---------|
+| **Pain** | TODO |
+| **Impact** | TODO |
+| **Frequency** | TODO |
+| **Current Workaround** | TODO |
+| **Proposed Solution** | TODO |
+| **Platform Implication** | TODO |
+EOF2
+
+echo "[agent-framework] Suggested limitation ID: $entry_id"