Add new fields to TasksSerializer and enhance auto_generate_content_task with detailed step tracking

- Updated TasksSerializer to include 'primary_keyword', 'secondary_keywords', 'tags', and 'categories'.
- Enhanced auto_generate_content_task to track progress with detailed steps, including initialization, preparation, AI call, parsing, and saving.
- Updated progress modal to reflect new phases and improved animation for smoother user experience.
- Adjusted routing and configuration for content and drafts pages in the frontend.

frontend/src/App.tsx

@@ -1,5 +1,5 @@
 import { Suspense, lazy } from "react";
-import { BrowserRouter as Router, Routes, Route } from "react-router";
+import { BrowserRouter as Router, Routes, Route, Navigate } from "react-router";
 import AppLayout from "./layout/AppLayout";
 import { ScrollToTop } from "./components/common/ScrollToTop";
 import ProtectedRoute from "./components/auth/ProtectedRoute";
@@ -24,7 +24,6 @@ const KeywordOpportunities = lazy(() => import("./pages/Planner/KeywordOpportuni
 // Writer Module - Lazy loaded
 const WriterDashboard = lazy(() => import("./pages/Writer/Dashboard"));
 const Tasks = lazy(() => import("./pages/Writer/Tasks"));
-const Content = lazy(() => import("./pages/Writer/Content"));
 const Drafts = lazy(() => import("./pages/Writer/Drafts"));
 const Images = lazy(() => import("./pages/Writer/Images"));
 const Published = lazy(() => import("./pages/Writer/Published"));
@@ -160,15 +159,11 @@ export default function App() {
                 </Suspense>
             } />
             <Route path="/writer/content" element={
-              <Suspense fallback={null}>
-                  <Content />
-                </Suspense>
-            } />
-            <Route path="/writer/drafts" element={
               <Suspense fallback={null}>
                   <Drafts />
                 </Suspense>
             } />
+            <Route path="/writer/drafts" element={<Navigate to="/writer/content" replace />} />
             <Route path="/writer/images" element={
               <Suspense fallback={null}>
                   <Images />