refactor(backend): simplify media schema and recording metadata

Backend/routes/streams.ts

@@ -6,7 +6,7 @@ import { z } from 'zod';
 
 import { db } from '../db/client';
 import { mediaMode, simpleStreamingEnabled, streamRecordingEnabled } from '../media/config';
-import { deviceCommands, deviceLinks, devices, streamSessions } from '../db/schema';
+import { commands, deviceLinks, devices, streamSessions } from '../db/schema';
 import { createLiveMediaSession, mediaProvider } from '../media/service';
 import { sfuService } from '../media/sfu/service';
 import { requireDeviceAuth } from '../middleware/device-auth';
@@ -204,7 +204,7 @@ router.post('/request', requireDeviceAuth, async (req, res) => {
   }
 
   const [command] = await db
-    .insert(deviceCommands)
+    .insert(commands)
     .values({
       ownerUserId: deviceAuth.userId,
       sourceDeviceId: sourceDevice.id,
@@ -235,7 +235,7 @@ router.post('/request', requireDeviceAuth, async (req, res) => {
     commandId: command.id,
   });
 
-  const refreshedCommand = await db.query.deviceCommands.findFirst({ where: eq(deviceCommands.id, command.id) });
+  const refreshedCommand = await db.query.commands.findFirst({ where: eq(commands.id, command.id) });
 
   const deliveredToRequester = sendRealtimeToDevice(sourceDevice.id, 'stream:requested', {
     streamSessionId: session.id,