feat(userbot,api,frontend): file links, media downloads, story hold-pause, drop scheduled dupes

backend/src/utils/read/message_view.py

@@ -5,6 +5,7 @@ from typing import Any
 import asyncpg
 from pydantic import ValidationError
 
+from utils.files import media_file_name
 from utils.read.models import (
     ContactView,
     EntityView,
@@ -344,6 +345,7 @@ def media_ref_from(
     obj = obj if isinstance(obj, dict) else {}
     width = obj.get("width") or obj.get("length")
     height = obj.get("height") or obj.get("length")
+    mime = (media_row["mime"] if media_row else None) or obj.get("mime_type")
     return MediaRef(
         message_id=message_id,
         id=media_row["id"] if media_row else None,
@@ -352,11 +354,12 @@ def media_ref_from(
         width=width,
         height=height,
         duration=obj.get("duration"),
-        mime=(media_row["mime"] if media_row else None) or obj.get("mime_type"),
+        mime=mime,
         file_size=(media_row["file_size"] if media_row else None)
         or obj.get("file_size"),
         ttl_seconds=media_row["ttl_seconds"] if media_row else None,
         extracted_text=media_row["extracted_text"] if media_row else None,
+        file_name=media_file_name(kind, mime, message_id, obj.get("file_name")),
     )