Implement Stage 3: Enhance content generation and metadata features

- Updated AI prompts to include metadata context, cluster roles, and product attributes for improved content generation.
- Enhanced GenerateContentFunction to incorporate taxonomy and keyword objects for richer context.
- Introduced new metadata fields in frontend components for better content organization and filtering.
- Added cluster match, taxonomy match, and relevance score to LinkResults for improved link management.
- Implemented metadata completeness scoring and recommended actions in AnalysisPreview for better content optimization.
- Updated API services to support new metadata structures and site progress tracking.

frontend/src/pages/Planner/Ideas.tsx

@@ -45,6 +45,7 @@ export default function Ideas() {
   const [clusterFilter, setClusterFilter] = useState('');
   const [structureFilter, setStructureFilter] = useState('');
   const [typeFilter, setTypeFilter] = useState('');
+  const [entityTypeFilter, setEntityTypeFilter] = useState(''); // Stage 3: Entity type filter
   const [selectedIds, setSelectedIds] = useState<string[]>([]);
   
   // Pagination state
@@ -101,6 +102,7 @@ export default function Ideas() {
         ...(clusterFilter && { keyword_cluster_id: clusterFilter }),
         ...(structureFilter && { content_structure: structureFilter }),
         ...(typeFilter && { content_type: typeFilter }),
+        ...(entityTypeFilter && { site_entity_type: entityTypeFilter }), // Stage 3: Entity type filter
         page: currentPage,
         page_size: pageSize,
         ordering,
@@ -121,7 +123,7 @@ export default function Ideas() {
       setShowContent(true);
       setLoading(false);
     }
-  }, [currentPage, statusFilter, clusterFilter, structureFilter, typeFilter, sortBy, sortDirection, searchTerm, activeSector, pageSize]);
+  }, [currentPage, statusFilter, clusterFilter, structureFilter, typeFilter, entityTypeFilter, sortBy, sortDirection, searchTerm, activeSector, pageSize]);
 
   useEffect(() => {
     loadIdeas();
@@ -311,6 +313,7 @@ export default function Ideas() {
           keyword_cluster_id: clusterFilter,
           content_structure: structureFilter,
           content_type: typeFilter,
+          site_entity_type: entityTypeFilter, // Stage 3: Entity type filter
         }}
         onFilterChange={(key, value) => {
           const stringValue = value === null || value === undefined ? '' : String(value);
@@ -318,12 +321,19 @@ export default function Ideas() {
             setSearchTerm(stringValue);
           } else if (key === 'status') {
             setStatusFilter(stringValue);
+            setCurrentPage(1);
           } else if (key === 'keyword_cluster_id') {
             setClusterFilter(stringValue);
+            setCurrentPage(1);
           } else if (key === 'content_structure') {
             setStructureFilter(stringValue);
+            setCurrentPage(1);
           } else if (key === 'content_type') {
             setTypeFilter(stringValue);
+            setCurrentPage(1);
+          } else if (key === 'site_entity_type') { // Stage 3: Entity type filter
+            setEntityTypeFilter(stringValue);
+            setCurrentPage(1);
           }
           setCurrentPage(1);
         }}