Add Linker and Optimizer modules with API integration and frontend components

- Added Linker and Optimizer apps to `INSTALLED_APPS` in `settings.py`.
- Configured API endpoints for Linker and Optimizer in `urls.py`.
- Implemented `OptimizeContentFunction` for content optimization in the AI module.
- Created prompts for content optimization and site structure generation.
- Updated `OptimizerService` to utilize the new AI function for content optimization.
- Developed frontend components including dashboards and content lists for Linker and Optimizer.
- Integrated new routes and sidebar navigation for Linker and Optimizer in the frontend.
- Enhanced content management with source and sync status filters in the Writer module.
- Comprehensive test coverage added for new features and components.

frontend/src/config/pages/content.config.tsx

@@ -15,6 +15,8 @@ import Badge from '../../components/ui/badge/Badge';
 import { formatRelativeDate } from '../../utils/date';
 import { Content } from '../../services/api';
 import { FileIcon, MoreDotIcon } from '../../icons';
+import { SourceBadge, ContentSource } from '../../components/content/SourceBadge';
+import { SyncStatusBadge, SyncStatus } from '../../components/content/SyncStatusBadge';
 
 export interface ColumnConfig {
   key: string;
@@ -192,6 +194,26 @@ export const createContentPageConfig = (
           );
         },
       },
+      {
+        key: 'source',
+        label: 'Source',
+        sortable: true,
+        sortField: 'source',
+        width: '120px',
+        render: (_value: any, row: Content) => (
+          <SourceBadge source={(row.source as ContentSource) || 'igny8'} />
+        ),
+      },
+      {
+        key: 'sync_status',
+        label: 'Sync Status',
+        sortable: true,
+        sortField: 'sync_status',
+        width: '120px',
+        render: (_value: any, row: Content) => (
+          <SyncStatusBadge status={(row.sync_status as SyncStatus) || 'native'} />
+        ),
+      },
       {
         ...createdColumn,
         sortable: true,
@@ -327,6 +349,29 @@ export const createContentPageConfig = (
           { value: 'publish', label: 'Publish' },
         ],
       },
+      {
+        key: 'source',
+        label: 'Source',
+        type: 'select',
+        options: [
+          { value: '', label: 'All Sources' },
+          { value: 'igny8', label: 'IGNY8' },
+          { value: 'wordpress', label: 'WordPress' },
+          { value: 'shopify', label: 'Shopify' },
+          { value: 'custom', label: 'Custom' },
+        ],
+      },
+      {
+        key: 'sync_status',
+        label: 'Sync Status',
+        type: 'select',
+        options: [
+          { value: '', label: 'All Sync Status' },
+          { value: 'native', label: 'Native' },
+          { value: 'imported', label: 'Imported' },
+          { value: 'synced', label: 'Synced' },
+        ],
+      },
     ],
     headerMetrics: [
       {