feat: add backfill migration for media dimensions and video thumbnails

packages/server/src/index.ts

@@ -7,7 +7,8 @@ import fastifyStatic from '@fastify/static';
 import { config } from './config.js';
 import { getDb, getRawDb } from './db/index.js';
 import { seedDatabase } from './db/seed.js';
-import { backfillThumbnails } from './db/migrate.js';
+import { backfillThumbnails, backfillMediaDimensions } from './db/migrate.js';
+import { checkFfmpeg } from './utils/thumbnail.js';
 import { authRoutes } from './routes/auth.js';
 import { userRoutes } from './routes/users.js';
 import { spaceRoutes } from './routes/spaces.js';
@@ -123,6 +124,14 @@ async function main(): Promise<void> {
     console.error('Thumbnail backfill failed (non-fatal):', err);
   });
 
+  // Log ffmpeg availability at startup (so admins see the warning immediately)
+  checkFfmpeg();
+
+  // Fire-and-forget: backfill dimensions for existing media (runs once)
+  backfillMediaDimensions(getRawDb(), config.uploadDir).catch(err => {
+    console.error('Media dimensions backfill failed (non-fatal):', err);
+  });
+
   const shutdown = async () => {
     console.log('Shutting down...');
     await app.close();