fix: create missing client index files and fix UI component paths

- Add client package index files for utils, entities, cache, data-pipeline
- Fix UI feedback component paths to use correct subdirectory structure
- Remove duplicate component exports from main UI components index
- Resolve module resolution errors in CI builds

Author: Mearman

packages/client/src/cache/index.ts

@@ -0,0 +1,7 @@
+/**
+ * Client Cache
+ *
+ * Caching functionality for OpenAlex API client
+ */
+
+export * from './disk';

packages/client/src/data-pipeline/index.ts

@@ -0,0 +1,7 @@
+/**
+ * Data Pipeline
+ *
+ * Data processing pipeline functionality
+ */
+
+// Add exports here when data pipeline modules are available

packages/client/src/entities/index.ts

@@ -0,0 +1,16 @@
+/**
+ * Client Entity Methods
+ *
+ * OpenAlex entity API methods
+ */
+
+export * from './authors';
+export * from './works';
+export * from './institutions';
+export * from './sources';
+export * from './publishers';
+export * from './funders';
+export * from './concepts';
+export * from './topics';
+export * from './keywords';
+export * from './text-analysis';

packages/client/src/utils/index.ts

@@ -0,0 +1,17 @@
+/**
+ * Client Utils
+ *
+ * Utility functions for OpenAlex API client
+ */
+
+export * from './autocomplete';
+export * from './filter-builder';
+export * from './grouping';
+export * from './hydration-helpers';
+export * from './id-resolver';
+export * from './query-builder';
+export * from './query-params';
+export * from './request-normalizer';
+export * from './sampling';
+export * from './statistics';
+export * from './transformers';

packages/ui/src/components/feedback/index.ts

@@ -4,6 +4,6 @@
  * User feedback and error handling components
  */
 
-export * from './ErrorBoundary';
+export * from './ErrorBoundary/ErrorBoundary';
 export * from './LoadingSpinner';
 export * from './ErrorRecovery';

packages/ui/src/components/index.ts

@@ -11,7 +11,4 @@ export * from './layout';
 export * from './settings';
 
 // Re-export individual components
-export * from './ErrorBoundary';
-export * from './LoadingSpinner';
-export * from './ErrorRecovery';
 export * from './SkeletonScreens';