feat: Gitea Webhook, IMAP, Settings & Deployment docs

- Webhook route and Gitea integration
- IMAP service and Nextcloud/Porkbun setup docs
- Settings UI improvements and API updates
- SSH/Webhook fix prompt for emailsorter.webklar.com
- Bootstrap, config and AI sorter updates

server/package.json

@@ -16,6 +16,7 @@
     "test": "node e2e-test.mjs",
     "test:frontend": "node test-frontend.mjs",
     "verify": "node verify-setup.mjs",
+    "create-admin": "node scripts/create-admin-user.mjs",
     "cleanup": "node cleanup.mjs",
     "lint": "eslint --ext .mjs ."
   },
@@ -38,6 +39,7 @@
     "express": "^4.21.2",
     "google-auth-library": "^9.14.2",
     "googleapis": "^144.0.0",
+    "imapflow": "^1.2.8",
     "node-appwrite": "^14.1.0",
     "stripe": "^17.4.0"
   },