Add web admin features + fix scraper & translator

Frontend changes:
- Add /admin dashboard for article management
- Add AdminButton component (Alt+Shift+A on articles)
- Add /api/admin/article API endpoints

Backend improvements:
- scraper_v2.py: Multi-layer fallback extraction (newspaper → trafilatura → readability)
- translator_v2.py: Better chunking, repetition detection, validation
- admin_tools.py: CLI admin commands
- test_scraper.py: Individual source testing

Docs:
- WEB-ADMIN-GUIDE.md: Web admin usage
- ADMIN-GUIDE.md: CLI admin usage
- SCRAPER-IMPROVEMENT-PLAN.md: Scraper fixes details
- TRANSLATION-FIX.md: Translation improvements
- ADMIN-FEATURES-SUMMARY.md: Implementation summary

Fixes:
- Article scraping from 0 → 96+ articles working
- Translation quality issues (repetition, truncation)
- Added 13 new RSS sources

frontend/app/api/admin/article/route.ts

@@ -0,0 +1,122 @@
+// Admin API for managing articles
+import { NextRequest, NextResponse } from 'next/server';
+import { Pool } from 'pg';
+
+// Simple password auth (you can change this in .env)
+const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD || 'burmddit2026';
+
+const pool = new Pool({
+  connectionString: process.env.DATABASE_URL,
+});
+
+// Helper to check admin auth
+function checkAuth(request: NextRequest): boolean {
+  const authHeader = request.headers.get('authorization');
+  if (!authHeader) return false;
+  
+  const password = authHeader.replace('Bearer ', '');
+  return password === ADMIN_PASSWORD;
+}
+
+// GET /api/admin/article - List articles
+export async function GET(request: NextRequest) {
+  if (!checkAuth(request)) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  const { searchParams } = new URL(request.url);
+  const status = searchParams.get('status') || 'published';
+  const limit = parseInt(searchParams.get('limit') || '50');
+
+  try {
+    const client = await pool.connect();
+    
+    const result = await client.query(
+      `SELECT id, title, title_burmese, slug, status, 
+              LENGTH(content) as content_length,
+              LENGTH(content_burmese) as burmese_length,
+              published_at, view_count
+       FROM articles
+       WHERE status = $1
+       ORDER BY published_at DESC
+       LIMIT $2`,
+      [status, limit]
+    );
+    
+    client.release();
+    
+    return NextResponse.json({ articles: result.rows });
+  } catch (error) {
+    console.error('Database error:', error);
+    return NextResponse.json({ error: 'Database error' }, { status: 500 });
+  }
+}
+
+// POST /api/admin/article - Update article status
+export async function POST(request: NextRequest) {
+  if (!checkAuth(request)) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  try {
+    const body = await request.json();
+    const { articleId, action, reason } = body;
+
+    if (!articleId || !action) {
+      return NextResponse.json({ error: 'Missing required fields' }, { status: 400 });
+    }
+
+    const client = await pool.connect();
+
+    if (action === 'unpublish') {
+      await client.query(
+        `UPDATE articles 
+         SET status = 'draft', updated_at = NOW()
+         WHERE id = $1`,
+        [articleId]
+      );
+      
+      client.release();
+      
+      return NextResponse.json({
+        success: true,
+        message: `Article ${articleId} unpublished`,
+        reason
+      });
+      
+    } else if (action === 'publish') {
+      await client.query(
+        `UPDATE articles 
+         SET status = 'published', updated_at = NOW()
+         WHERE id = $1`,
+        [articleId]
+      );
+      
+      client.release();
+      
+      return NextResponse.json({
+        success: true,
+        message: `Article ${articleId} published`
+      });
+      
+    } else if (action === 'delete') {
+      await client.query(
+        `DELETE FROM articles WHERE id = $1`,
+        [articleId]
+      );
+      
+      client.release();
+      
+      return NextResponse.json({
+        success: true,
+        message: `Article ${articleId} deleted permanently`
+      });
+    }
+
+    return NextResponse.json({ error: 'Invalid action' }, { status: 400 });
+    
+  } catch (error) {
+    console.error('Database error:', error);
+    return NextResponse.json({ error: 'Database error' }, { status: 500 });
+  }
+}