feat(backend,frontend,mcp): any voice or round video can be transcribed on request, media is found by its bytes

backend/src/userbot/modules/stt/gate.py

@@ -2,7 +2,7 @@ from pyrogram import Client
 from pyrogram.errors import FloodPremiumWait, FloodWait, RPCError
 
 from userbot.modules.capture.context import CaptureContext
-from userbot.modules.stt.service import transcribe_message
+from userbot.modules.stt.service import TranscribeError, transcribe_message
 from utils.logging import logger
 
 
@@ -20,5 +20,5 @@ async def safe_transcribe(
             "transcribe",
             {"chat_id": chat_id, "message_id": message_id},
         )
-    except RPCError as exc:
+    except (TranscribeError, RPCError) as exc:
         logger.warning(f"[yellow]STT failed for {chat_id}/{message_id}: {exc}[/]")