refactor: standardize tsconfig paths, update deprecation settings, and format user creation timestamp to ISO string

apps/backend/src/modules/user/services/user.service.ts

@@ -14,6 +14,6 @@ export function getUserProfile(user: User): UserProfile {
     email: user.email,
     role: (user as any).role || 'member',
     avatarUrl: user.image || getGravatarUrl(user.email),
-    createdAt: user.createdAt,
+    createdAt: user.createdAt.toISOString(),
   };
 }

apps/backend/tsconfig.json

@@ -4,14 +4,15 @@
     "module": "ESNext",
     "moduleResolution": "bundler",
     "moduleDetection": "force",
-    "ignoreDeprecations": "5.0",
+    "ignoreDeprecations": "6.0",
     "strict": true,
     "skipLibCheck": true,
-    "types": ["bun"],
-    "baseUrl": ".",
+    "types": [
+      "bun"
+    ],
     "paths": {
       "@/*": [
-        "src/*"
+        "./src/*"
       ]
     },
     "outDir": "./dist",