setup

.eslintrc.json

@@ -32,6 +32,18 @@
     ]
   },
   "overrides": [
+    {
+      "files": ["**/index.ts", "**/index.tsx"],
+      "rules": {
+        "no-restricted-syntax": [
+          "error",
+          {
+            "selector": "Program",
+            "message": "index.ts files are forbidden. Use explicit file names instead (e.g., UserService.ts, not index.ts)."
+          }
+        ]
+      }
+    },
     {
       "files": ["**/*.ts", "**/*.tsx"],
       "parser": "@typescript-eslint/parser",
@@ -95,7 +107,14 @@
           }
         ],
         "import/no-default-export": "error",
-        "import/no-useless-path-segments": "error"
+        "import/no-useless-path-segments": "error",
+        "no-restricted-syntax": [
+          "error",
+          {
+            "selector": "ExportDefaultDeclaration",
+            "message": "Default exports are forbidden. Use named exports instead."
+          }
+        ]
       }
     }
   ]