Add Coolify REST API server with Scalar docs and UI integration

Express API server on :3100 exposing all Coolify operations:
- CRUD for apps, env vars, servers
- Full upsert pipeline (create/update + env + route + deploy)
- Drift detection, Traefik route management via SSH
- Scalar API docs at /reference, OpenAPI 3.1 spec

UI: New Coolify page with app cards, deploy/delete actions,
env var expansion. Sidebar nav + React Query hooks + fetch client.

Both UI and LLM/CLI use the same HTTP endpoints.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -6,6 +6,8 @@
   "type": "module",
   "scripts": {
     "docker-deploy": "node cli/index.js",
+    "api": "node api/server.js",
+    "api:dev": "node --watch api/server.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [
@@ -18,12 +20,15 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
-    "commander": "^12.1.0",
-    "handlebars": "^4.7.8",
+    "@scalar/express-api-reference": "^0.8.46",
     "chalk": "^5.3.0",
+    "commander": "^12.1.0",
+    "cors": "^2.8.6",
+    "express": "^5.2.1",
+    "glob": "^11.0.0",
+    "handlebars": "^4.7.8",
     "inquirer": "^11.1.0",
-    "ssh2": "^1.16.0",
-    "glob": "^11.0.0"
+    "ssh2": "^1.16.0"
   },
   "engines": {
     "node": ">=18.0.0"