Add multi-account support and CORS/logging middleware

- Add garfield, sales, leads, founder accounts to IMAP and SMTP configs
- Refactor fetcherpay config into shared helper functions
- Add CORS middleware with wildcard origin
- Add request logging middleware and MCP session lifecycle logs
- Include package-lock.json and add @types/cors dependency

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

package.json

@@ -11,15 +11,17 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.0.0",
+    "@types/cors": "^2.8.19",
+    "cors": "^2.8.6",
+    "dotenv": "^16.0.0",
     "express": "^4.18.0",
     "imapflow": "^1.0.0",
-    "nodemailer": "^6.9.0",
-    "dotenv": "^16.0.0"
+    "nodemailer": "^6.9.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.0",
-    "@types/nodemailer": "^6.4.0",
     "@types/node": "^20.0.0",
+    "@types/nodemailer": "^6.4.0",
     "tsx": "^4.0.0",
     "typescript": "^5.0.0"
   }