feat: Update API endpoint usage in repositories to remove redundant path property

- Refactored multiple repository implementations across client and staff features to directly use endpoint objects without accessing the `path` property.
- Introduced a new `FeatureGate` class for client-side feature gating based on user scopes, allowing for better access control to API endpoints.
- Added `ApiEndpoint` class to represent API endpoints with their paths and required scopes for future feature gating.

apps/mobile/packages/features/client/client_coverage/lib/src/data/repositories_impl/coverage_repository_impl.dart

@@ -20,7 +20,7 @@ class CoverageRepositoryImpl implements CoverageRepository {
     final String dateStr =
         '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
     final ApiResponse response = await _apiService.get(
-      ClientEndpoints.coverage.path,
+      ClientEndpoints.coverage,
       params: <String, dynamic>{'date': dateStr},
     );
     final List<dynamic> items = response.data['items'] as List<dynamic>;
@@ -35,7 +35,7 @@ class CoverageRepositoryImpl implements CoverageRepository {
     final String dateStr =
         '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
     final ApiResponse response = await _apiService.get(
-      ClientEndpoints.coverageStats.path,
+      ClientEndpoints.coverageStats,
       params: <String, dynamic>{'date': dateStr},
     );
     return CoverageStats.fromJson(response.data as Map<String, dynamic>);
@@ -67,7 +67,7 @@ class CoverageRepositoryImpl implements CoverageRepository {
       body['markAsFavorite'] = markAsFavorite;
     }
     await _apiService.post(
-      ClientEndpoints.coverageReviews.path,
+      ClientEndpoints.coverageReviews,
       data: body,
     );
   }
@@ -82,7 +82,7 @@ class CoverageRepositoryImpl implements CoverageRepository {
       body['reason'] = reason;
     }
     await _apiService.post(
-      ClientEndpoints.coverageCancelLateWorker(assignmentId).path,
+      ClientEndpoints.coverageCancelLateWorker(assignmentId),
       data: body,
     );
   }