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/pages/Writer/Content.tsx

@@ -5,12 +5,14 @@
 
 import { useState, useEffect, useMemo, useCallback, useRef } from 'react';
 import TablePageTemplate from '../../templates/TablePageTemplate';
-import {
+import { 
   fetchContent,
   Content as ContentType,
   ContentFilters,
   generateImagePrompts,
 } from '../../services/api';
+import { optimizerApi } from '../../api/optimizer.api';
+import { useNavigate } from 'react-router';
 import { useToast } from '../../components/ui/toast/ToastContainer';
 import { FileIcon } from '../../icons';
 import { createContentPageConfig } from '../../config/pages/content.config';
@@ -32,6 +34,8 @@ export default function Content() {
   // Filter state
   const [searchTerm, setSearchTerm] = useState('');
   const [statusFilter, setStatusFilter] = useState('');
+  const [sourceFilter, setSourceFilter] = useState('');
+  const [syncStatusFilter, setSyncStatusFilter] = useState('');
   const [selectedIds, setSelectedIds] = useState<string[]>([]);
   
   // Pagination state
@@ -58,6 +62,8 @@ export default function Content() {
       const filters: ContentFilters = {
         ...(searchTerm && { search: searchTerm }),
         ...(statusFilter && { status: statusFilter }),
+        ...(sourceFilter && { source: sourceFilter }),
+        ...(syncStatusFilter && { sync_status: syncStatusFilter }),
         page: currentPage,
         page_size: pageSize,
         ordering,
@@ -153,6 +159,8 @@ export default function Content() {
     }));
   }, [pageConfig?.headerMetrics, content, totalCount]);
 
+  const navigate = useNavigate();
+
   const handleRowAction = useCallback(async (action: string, row: ContentType) => {
     if (action === 'generate_image_prompts') {
       try {
@@ -176,8 +184,18 @@ export default function Content() {
       } catch (error: any) {
         toast.error(`Failed to generate prompts: ${error.message}`);
       }
+    } else if (action === 'optimize') {
+      try {
+        const result = await optimizerApi.optimize(row.id, 'writer');
+        toast.success(`Content optimized! Score: ${result.scores_after.overall_score.toFixed(1)}`);
+        loadContent(); // Reload to show updated scores
+      } catch (error: any) {
+        toast.error(`Failed to optimize content: ${error.message}`);
+      }
+    } else if (action === 'send_to_optimizer') {
+      navigate(`/optimizer/content?contentId=${row.id}`);
     }
-  }, [toast, progressModal, loadContent]);
+  }, [toast, progressModal, loadContent, navigate]);
 
   return (
     <>
@@ -194,6 +212,8 @@ export default function Content() {
         filterValues={{
           search: searchTerm,
           status: statusFilter,
+          source: sourceFilter,
+          sync_status: syncStatusFilter,
         }}
         onFilterChange={(key: string, value: any) => {
           if (key === 'search') {
@@ -201,6 +221,12 @@ export default function Content() {
           } else if (key === 'status') {
             setStatusFilter(value);
             setCurrentPage(1);
+          } else if (key === 'source') {
+            setSourceFilter(value);
+            setCurrentPage(1);
+          } else if (key === 'sync_status') {
+            setSyncStatusFilter(value);
+            setCurrentPage(1);
           }
         }}
         pagination={{