refactor: remove api-types.ts compatibility layer

- Migrated all 29 files from api-types.ts to use reflector-api.d.ts directly
- Removed $SourceKind manual enum in favor of OpenAPI-generated types
- Fixed unrelated Spinner component TypeScript error in AuthWrapper.tsx
- All imports now use: import type { components } from "path/to/reflector-api"
- Deleted api-types.ts file completely

www/app/(app)/AuthWrapper.tsx

@@ -19,7 +19,7 @@ export default function AuthWrapper({
         justifyContent="center"
         h="calc(100vh - 80px)" // Account for header height
       >
-        <Spinner size="xl" color="blue.500" thickness="4px" />
+        <Spinner size="xl" color="blue.500" />
       </Flex>
     );
   }