feat(auth): add cookie-signature dependency and enhance session cookie handling

- Introduced the `@types/cookie-signature` dependency to facilitate proper signing of session cookies.
- Updated session middleware to create a securely signed cookie using the session secret, improving session management for mobile applications.
- Enhanced logging for cookie creation and error handling to aid in debugging session issues.

worklenz-backend/package-lock.json

@@ -73,6 +73,7 @@
         "@types/compression": "^1.7.2",
         "@types/connect-flash": "^0.0.37",
         "@types/cookie-parser": "^1.4.3",
+        "@types/cookie-signature": "^1.1.2",
         "@types/cron": "^2.0.1",
         "@types/crypto-js": "^4.2.2",
         "@types/csurf": "^1.11.2",
@@ -5445,6 +5446,16 @@
         "@types/express": "*"
       }
     },
+    "node_modules/@types/cookie-signature": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@types/cookie-signature/-/cookie-signature-1.1.2.tgz",
+      "integrity": "sha512-2OhrZV2LVnUAXklUFwuYUTokalh/dUb8rqt70OW6ByMSxYpauPZ+kfNLknX3aJyjY5iu8i3cUyoLZP9Fn37tTg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/cors": {
       "version": "2.8.19",
       "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.19.tgz",