feat: Complete Stage 2 frontend refactor

- Removed deprecated fields from Content and Task models, including entity_type, sync_status, and cluster_role.
- Updated Content model to include new fields: content_type, content_structure, taxonomy_terms, source, external_id, and cluster_id.
- Refactored Writer module components (Content, ContentView, Dashboard, Tasks) to align with new schema.
- Enhanced Dashboard metrics and removed unused filters.
- Implemented ClusterDetail page to display cluster information and associated content.
- Updated API service interfaces to reflect changes in data structure.
- Adjusted sorting and filtering logic across various components to accommodate new field names and types.
- Improved user experience by providing loading states and error handling in data fetching.

frontend/src/pages/Writer/Tasks.tsx

@@ -49,7 +49,6 @@ export default function Tasks() {
   const [structureFilter, setStructureFilter] = useState('');
   const [typeFilter, setTypeFilter] = useState('');
   const [sourceFilter, setSourceFilter] = useState('');
-  const [entityTypeFilter, setEntityTypeFilter] = useState(''); // Stage 3: Entity type filter
   const [selectedIds, setSelectedIds] = useState<string[]>([]);
   
   // Pagination state
@@ -71,8 +70,8 @@ export default function Tasks() {
     description: '',
     keywords: '',
     cluster_id: null,
-    content_structure: 'blog_post',
-    content_type: 'blog_post',
+    content_structure: 'article',
+    content_type: 'post',
     status: 'queued',
     word_count: 0,
   });
@@ -145,7 +144,6 @@ export default function Tasks() {
         ...(clusterFilter && { cluster_id: clusterFilter }),
         ...(structureFilter && { content_structure: structureFilter }),
         ...(typeFilter && { content_type: typeFilter }),
-        ...(entityTypeFilter && { entity_type: entityTypeFilter }), // Stage 3: Entity type filter
         page: currentPage,
         page_size: pageSize,
         ordering,
@@ -533,8 +531,8 @@ export default function Tasks() {
       description: '',
       keywords: '',
       cluster_id: null,
-      content_structure: 'blog_post',
-      content_type: 'blog_post',
+      content_structure: 'article',
+      content_type: 'post',
       status: 'queued',
       word_count: 0,
     });
@@ -588,7 +586,6 @@ export default function Tasks() {
             content_structure: structureFilter,
             content_type: typeFilter,
             source: sourceFilter,
-            entity_type: entityTypeFilter, // Stage 3: Entity type filter
           }}
           onFilterChange={(key, value) => {
             const stringValue = value === null || value === undefined ? '' : String(value);
@@ -604,8 +601,6 @@ export default function Tasks() {
               setTypeFilter(stringValue);
             } else if (key === 'source') {
               setSourceFilter(stringValue);
-            } else if (key === 'entity_type') { // Stage 3: Entity type filter
-              setEntityTypeFilter(stringValue);
             }
             setCurrentPage(1);
           }}
@@ -616,8 +611,8 @@ export default function Tasks() {
               description: row.description || '',
               keywords: row.keywords || '',
               cluster_id: row.cluster_id || null,
-              content_structure: row.content_structure || 'blog_post',
-              content_type: row.content_type || 'blog_post',
+              content_structure: row.content_structure || 'article',
+              content_type: row.content_type || 'post',
               status: row.status || 'queued',
               word_count: row.word_count || 0,
             });