fix(userbot): encode absent pyrogram raw payloads as empty json

backend/src/userbot/modules/capture/identity.py

@@ -5,6 +5,7 @@ from typing import TYPE_CHECKING
 from userbot.modules.capture.chat_meta import chat_kind
 from userbot.modules.profiles.parse import ProfileFields, snapshot_from_high_level
 from userbot.modules.profiles.repository import get_peer, write_profile
+from userbot.modules.raw_json import raw_json
 from utils.policy.models import ChatKind
 
 if TYPE_CHECKING:
@@ -59,7 +60,7 @@ async def _capture_peer(message: Message, ctx: CaptureContext) -> None:
     fields, photo_file_id, photo_unique_id = snapshot_from_high_level(user)
     if not await ctx.peer_identity.changed(ctx.pool, ctx.account_id, user.id, fields):
         return
-    await write_profile(ctx.pool, ctx.account_id, user.id, fields, str(user))
+    await write_profile(ctx.pool, ctx.account_id, user.id, fields, raw_json(user))
     if photo_file_id and photo_unique_id:
         from userbot.modules.avatars import note_avatar  # noqa: PLC0415
 
@@ -95,7 +96,7 @@ async def _capture_chat(message: Message, ctx: CaptureContext) -> None:
         photo_unique_id,
         None,
         message.date,
-        str(message),
+        raw_json(message),
     )
     if photo_file_id and photo_unique_id:
         from userbot.modules.avatars import note_avatar  # noqa: PLC0415