Say at startup whether video is on

The video path leaves no trace in the log when it is switched off, so a
missing VIDEO_ENABLED in an existing .env looks exactly like a broken
screen share. Startup now states which mode it is in, and at what size.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/index.ts

@@ -46,6 +46,15 @@ async function main(): Promise<void> {
     logger.warn({ path: config.YTDLP_COOKIES }, "cookie file from YTDLP_COOKIES does not exist");
   }
 
+  if (config.VIDEO_ENABLED) {
+    logger.info(
+      { size: `${config.VIDEO_WIDTH}x${config.VIDEO_HEIGHT}`, fps: config.VIDEO_FPS },
+      "video enabled — YouTube clips will be published as a screen share",
+    );
+  } else {
+    logger.info("video disabled — set VIDEO_ENABLED=true to publish clips as a screen share");
+  }
+
   const manager = new MusicManager();
   const bot = await startBot(manager);
   const app = await startApiServer({ manager, context: bot.context });