feat: add waveform voice messages end-to-end

app/media/repository.py

@@ -12,12 +12,14 @@ async def create_attachment(
     file_url: str,
     file_type: str,
     file_size: int,
+    waveform_data: str | None = None,
 ) -> Attachment:
     attachment = Attachment(
         message_id=message_id,
         file_url=file_url,
         file_type=file_type,
         file_size=file_size,
+        waveform_data=waveform_data,
     )
     db.add(attachment)
     await db.flush()
@@ -46,3 +48,15 @@ async def list_chat_attachments(
         stmt = stmt.where(Attachment.id < before_id)
     result = await db.execute(stmt)
     return [(row[0], row[1]) for row in result.all()]
+
+
+async def list_attachments_by_message_ids(
+    db: AsyncSession,
+    *,
+    message_ids: list[int],
+) -> list[Attachment]:
+    if not message_ids:
+        return []
+    stmt = select(Attachment).where(Attachment.message_id.in_(message_ids))
+    result = await db.execute(stmt)
+    return list(result.scalars().all())