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

backend/src/userbot/handlers/raw/profiles.py

@@ -7,6 +7,7 @@ from userbot.modules.avatars import capture_avatar
 from userbot.modules.profiles import active_username, snapshot_from_user
 from userbot.modules.profiles.parse import ProfileFields
 from userbot.modules.profiles.repository import get_peer, write_profile
+from userbot.modules.raw_json import raw_json
 
 HANDLES = (raw.types.UpdateUserName, raw.types.UpdateUser, raw.types.UpdateUserPhone)
 
@@ -24,7 +25,9 @@ async def _handle_user(
     current = await get_peer(ctx.pool, ctx.account_id, update.user_id)
     if current == fields:
         return
-    await write_profile(ctx.pool, ctx.account_id, update.user_id, fields, str(raw_user))
+    await write_profile(
+        ctx.pool, ctx.account_id, update.user_id, fields, raw_json(raw_user)
+    )
     changed_photo = current is None or current.photo_unique_id != photo_unique_id
     if photo_file_id and photo_unique_id and changed_photo:
         await capture_avatar(
@@ -34,7 +37,7 @@ async def _handle_user(
             "peer",
             photo_file_id,
             photo_unique_id,
-            str(raw_user),
+            raw_json(raw_user),
         )
 
 
@@ -65,9 +68,9 @@ async def handle(
                 "last_name": update.last_name or None,
                 "username": active_username(update.usernames),
             },
-            str(update),
+            raw_json(update),
         )
     elif isinstance(update, raw.types.UpdateUserPhone):
         await _merge_partial(
-            client, update.user_id, {"phone": update.phone or None}, str(update)
+            client, update.user_id, {"phone": update.phone or None}, raw_json(update)
         )