Add trending videos page with YouTube-style algorithm

- Trending algorithm based on:
  - Recent views (last 48h): 70% weight
  - View velocity (views/hour): 15% weight
  - Recency bonus: 10% weight
  - Like count: 5% weight
- Excludes videos older than 10 days
- Filter options: Today/This Week/This Month
- Added route, controller method, and view
- Updated nav to link to trending page

app/Http/Controllers/VideoController.php

@@ -395,4 +395,47 @@ class VideoController extends Controller
         
         return response()->download($path, $filename);
     }
+
+    // Trending videos page
+    public function trending(Request $request)
+    {
+        $hours = $request->get('hours', 48); // Default: 48 hours
+        $limit = $request->get('limit', 50);
+        
+        // Validate parameters
+        $hours = min(max($hours, 24), 168); // Between 24h and 7 days
+        $limit = min(max($limit, 10), 100);
+        
+        // Get trending videos using the scope with raw score calculation
+        $trendingVideos = \DB::table('videos')
+            ->select('videos.*',
+                \DB::raw('(
+                    (SELECT COUNT(*) FROM video_views vv WHERE vv.video_id = videos.id AND vv.watched_at >= DATE_SUB(NOW(), INTERVAL ' . $hours . ' HOUR)) * 0.70 +
+                    (SELECT COUNT(*) FROM video_views vv WHERE vv.video_id = videos.id AND vv.watched_at >= DATE_SUB(NOW(), INTERVAL ' . $hours . ' HOUR)) / ' . $hours . ' * 100 * 0.15 +
+                    GREATEST(0, 1 - TIMESTAMPDIFF(HOUR, videos.created_at, NOW()) / 240) * 50 * 0.10 +
+                    (SELECT COUNT(*) FROM video_likes vl WHERE vl.video_id = videos.id) * 0.1 * 0.05
+                ) as trending_score')
+            )
+            ->where('visibility', 'public')
+            ->where('status', 'ready')
+            ->where('created_at', '>=', now()->subDays(10))
+            ->having('trending_score', '>', 0)
+            ->orderByDesc('trending_score')
+            ->limit($limit)
+            ->get();
+        
+        // Load user relationship
+        $trendingVideos = $trendingVideos->map(function ($video) {
+            $video->user = \App\Models\User::find($video->user_id);
+            $video->view_count = \DB::table('video_views')->where('video_id', $video->id)->count();
+            $video->like_count = \DB::table('video_likes')->where('video_id', $video->id)->count();
+            return $video;
+        });
+        
+        return view('videos.trending', [
+            'videos' => $trendingVideos,
+            'hours' => $hours,
+            'limit' => $limit,
+        ]);
+    }
 }