Improve video sharing functionality and page meta tags

Update `bunny-video-modal.tsx` to support custom share domains and modify `VideoPage.tsx` to dynamically update meta tags (title, description, Open Graph, Twitter Card) for enhanced social sharing, using `VITE_SHARE_DOMAIN` environment variable for custom domain configuration.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 074b0e4c-6171-43bd-aa98-f9e04623ca14
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/074b0e4c-6171-43bd-aa98-f9e04623ca14/Sy6XHzr

client/src/components/bunny-video-modal.tsx

@@ -111,7 +111,9 @@ export default function BunnyVideoModal({ video, isOpen, onClose, onEdit, videos
 
   const getShareUrl = () => {
     if (!video?.id) return window.location.origin;
-    return `${window.location.origin}?video=${video.id}`;
+    // Use custom domain if set, otherwise current domain
+    const baseUrl = import.meta.env.VITE_SHARE_DOMAIN || window.location.origin;
+    return `${baseUrl}/video/${video.id}`;
   };
 
   const copyToClipboard = async () => {

client/src/pages/VideoPage.tsx

@@ -70,6 +70,52 @@ export default function VideoPage() {
 
   const recommendedVideos = recommendedResponse?.videos?.filter(v => v.id !== videoId) || [];
   
+  // Update page meta tags for social sharing
+  useEffect(() => {
+    if (currentVideo) {
+      // Update page title
+      document.title = `${currentVideo.title} | go4.video`;
+      
+      // Update meta description
+      const metaDescription = document.querySelector('meta[name="description"]');
+      if (metaDescription) {
+        metaDescription.setAttribute('content', currentVideo.description || `Watch ${currentVideo.title} on go4.video`);
+      }
+      
+      // Update Open Graph tags
+      const updateMetaTag = (property: string, content: string) => {
+        let meta = document.querySelector(`meta[property="${property}"]`);
+        if (!meta) {
+          meta = document.createElement('meta');
+          meta.setAttribute('property', property);
+          document.head.appendChild(meta);
+        }
+        meta.setAttribute('content', content);
+      };
+      
+      updateMetaTag('og:title', currentVideo.title);
+      updateMetaTag('og:description', currentVideo.description || `Watch ${currentVideo.title} on go4.video`);
+      updateMetaTag('og:image', currentVideo.thumbnailUrl);
+      updateMetaTag('og:url', window.location.href);
+      updateMetaTag('og:type', 'video.other');
+      updateMetaTag('og:video:duration', currentVideo.duration.toString());
+      
+      // Update Twitter Card tags  
+      const updateTwitterTag = (name: string, content: string) => {
+        let meta = document.querySelector(`meta[name="${name}"]`);
+        if (!meta) {
+          meta = document.createElement('meta');
+          meta.setAttribute('name', name);
+          document.head.appendChild(meta);
+        }
+        meta.setAttribute('content', content);
+      };
+      
+      updateTwitterTag('twitter:title', currentVideo.title);
+      updateTwitterTag('twitter:description', currentVideo.description || `Watch ${currentVideo.title} on go4.video`);
+      updateTwitterTag('twitter:image', currentVideo.thumbnailUrl);
+    }
+  }, [currentVideo]);
 
 
   // Track video view
@@ -85,7 +131,9 @@ export default function VideoPage() {
 
   const getShareUrl = () => {
     if (!currentVideo?.id) return window.location.origin;
-    return `${window.location.origin}/video/${currentVideo.id}`;
+    // Use custom domain if set, otherwise current domain
+    const baseUrl = import.meta.env.VITE_SHARE_DOMAIN || window.location.origin;
+    return `${baseUrl}/video/${currentVideo.id}`;
   };
 
   const copyToClipboard = async () => {