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/coolify/env-set.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+#
+# env-set.sh — Set environment variable on a Coolify service
+#
+# Usage: env-set.sh -u <uuid> -k <key> -v <value> [--preview]
+#
+# Options:
+#   -u uuid       Service UUID (required)
+#   -k key        Environment variable name (required)
+#   -v value      Environment variable value (required)
+#   --preview     Set as preview-only variable
+#   -h            Show this help
+#
+# Note: Changes take effect on next deploy/restart.
+set -euo pipefail
+
+MOSAIC_HOME="${MOSAIC_HOME:-$HOME/.config/mosaic}"
+source "$MOSAIC_HOME/tools/_lib/credentials.sh"
+load_credentials coolify
+
+UUID=""
+KEY=""
+VALUE=""
+IS_PREVIEW="false"
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -u) UUID="$2"; shift 2 ;;
+    -k) KEY="$2"; shift 2 ;;
+    -v) VALUE="$2"; shift 2 ;;
+    --preview) IS_PREVIEW="true"; shift ;;
+    -h) head -15 "$0" | grep "^#" | sed 's/^# \?//'; exit 0 ;;
+    *) echo "Usage: $0 -u <uuid> -k <key> -v <value> [--preview]" >&2; exit 1 ;;
+  esac
+done
+
+if [[ -z "$UUID" || -z "$KEY" || -z "$VALUE" ]]; then
+  echo "Error: -u uuid, -k key, and -v value are required" >&2
+  exit 1
+fi
+
+payload=$(jq -n \
+  --arg key "$KEY" \
+  --arg value "$VALUE" \
+  --argjson preview "$IS_PREVIEW" \
+  '{key: $key, value: $value, is_preview: $preview}')
+
+response=$(curl -s -w "\n%{http_code}" \
+  -X PATCH \
+  -H "Authorization: Bearer $COOLIFY_TOKEN" \
+  -H "Content-Type: application/json" \
+  -d "$payload" \
+  "${COOLIFY_URL}/api/v1/services/${UUID}/envs")
+
+http_code=$(echo "$response" | tail -n1)
+body=$(echo "$response" | sed '$d')
+
+if [[ "$http_code" != "200" && "$http_code" != "201" ]]; then
+  echo "Error: Failed to set environment variable (HTTP $http_code)" >&2
+  echo "$body" | jq -r '.' 2>/dev/null >&2 || echo "$body" >&2
+  exit 1
+fi
+
+echo "Set $KEY on service $UUID"
+echo "Note: Redeploy the service to apply the change"