fix: safely handle empty/null models array in getVideoBySlug

- Added null/undefined checks before mapping models array
- Filter out invalid entries in models junction table data
- Default to empty array if models is not an array
- Prevents "Cannot read properties of undefined" errors on video pages

This fix ensures the video detail page works even when model associations
are missing or malformed in the database.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

packages/frontend/src/lib/services.ts

@@ -266,7 +266,14 @@ export async function getVideoBySlug(
 					if (videos.length === 0) {
 						throw new Error("Video not found");
 					}
-					videos[0].models = videos[0].models.map((u) => u.directus_users_id!);
+					// Handle models array - filter out null/undefined and map to user objects
+					if (Array.isArray(videos[0].models)) {
+						videos[0].models = videos[0].models
+							.filter((u) => u && u.directus_users_id)
+							.map((u) => u.directus_users_id!);
+					} else {
+						videos[0].models = [];
+					}
 
 					return videos[0];
 				});