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/tools/orchestrator/session-run.sh

@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+set -euo pipefail
+#
+# session-run.sh — Generate continuation context and launch target runtime.
+#
+# Usage:
+#   session-run.sh [--project <path>] [--milestone <id>] [--print] [--yolo]
+#
+# Behavior:
+# - Builds continuation prompt + next-task capsule.
+# - Launches selected runtime (default: claude, override via MOSAIC_COORD_RUNTIME).
+# - For codex, injects strict orchestration kickoff to reduce clarification loops.
+# - --yolo launches the runtime in dangerous/skip-permissions mode.
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/_lib.sh"
+
+PROJECT="."
+MILESTONE=""
+PRINT=false
+YOLO=false
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --project)   PROJECT="$2"; shift 2 ;;
+    --milestone) MILESTONE="$2"; shift 2 ;;
+    --print)     PRINT=true; shift ;;
+    --yolo)      YOLO=true; shift ;;
+    -h|--help)
+      cat <<'USAGE'
+Usage: session-run.sh [--project <path>] [--milestone <id>] [--print] [--yolo]
+
+Options:
+  --project <path>   Project directory (default: CWD)
+  --milestone <id>   Force specific milestone context
+  --print            Print launch prompt only (no runtime launch)
+  --yolo             Launch runtime in dangerous/skip-permissions mode
+USAGE
+      exit 0
+      ;;
+    *) echo "Unknown option: $1" >&2; exit 1 ;;
+  esac
+done
+
+PROJECT="${PROJECT/#\~/$HOME}"
+PROJECT="$(cd "$PROJECT" && pwd)"
+
+_require_jq
+require_mission "$PROJECT"
+
+runtime="$(coord_runtime)"
+launch_cmd="$(coord_launch_command)"
+
+continue_cmd=(bash "$SCRIPT_DIR/continue-prompt.sh" --project "$PROJECT")
+if [[ -n "$MILESTONE" ]]; then
+  continue_cmd+=(--milestone "$MILESTONE")
+fi
+
+continuation_prompt="$(MOSAIC_COORD_RUNTIME="$runtime" "${continue_cmd[@]}")"
+
+if [[ "$runtime" == "codex" ]]; then
+  launch_prompt="$(build_codex_strict_kickoff "$PROJECT" "$continuation_prompt")"
+else
+  launch_prompt="$continuation_prompt"
+fi
+
+if [[ "$PRINT" == true ]]; then
+  echo "$launch_prompt"
+  exit 0
+fi
+
+if [[ "$YOLO" == true ]]; then
+  launch_cmd="mosaic yolo $runtime"
+fi
+
+echo -e "${C_CYAN}Launching orchestration runtime: ${launch_cmd}${C_RESET}"
+echo -e "${C_CYAN}Project:${C_RESET} $PROJECT"
+echo -e "${C_CYAN}Capsule:${C_RESET} $(next_task_capsule_path "$PROJECT")"
+[[ "$YOLO" == true ]] && echo -e "${C_YELLOW}[YOLO] Dangerous permissions mode enabled.${C_RESET}"
+
+cd "$PROJECT"
+if [[ "$YOLO" == true ]]; then
+  exec "$MOSAIC_HOME/bin/mosaic" yolo "$runtime" "$launch_prompt"
+elif [[ "$runtime" == "claude" ]]; then
+  exec "$MOSAIC_HOME/bin/mosaic" claude "$launch_prompt"
+elif [[ "$runtime" == "codex" ]]; then
+  exec "$MOSAIC_HOME/bin/mosaic" codex "$launch_prompt"
+fi
+
+echo -e "${C_RED}Unsupported coord runtime: $runtime${C_RESET}" >&2
+exit 1