feat(api,userbot,frontend): search peers without chats and start tracking them

backend/src/userbot/modules/profiles/snapshots.py

@@ -0,0 +1,50 @@
+from datetime import UTC, datetime
+
+from pyrogram.types import Chat
+
+from userbot.modules.avatars import note_avatar
+from userbot.modules.capture.context import CaptureContext
+from userbot.modules.groups.repository import insert_chat_history
+from userbot.modules.profiles.parse import snapshot_from_chat
+from userbot.modules.profiles.repository import write_profile
+
+
+async def save_private(ctx: CaptureContext, chat: Chat) -> bool:
+    chat_id = chat.id or 0
+    fields, photo_file_id, photo_unique_id = snapshot_from_chat(chat)
+    await write_profile(ctx.pool, ctx.account_id, chat_id, fields, str(chat))
+    if photo_file_id and photo_unique_id:
+        await note_avatar(
+            ctx.pool, ctx.account_id, chat_id, "peer", photo_unique_id, photo_file_id
+        )
+    return bool(fields.first_name or fields.last_name or fields.username)
+
+
+async def save_group(ctx: CaptureContext, chat: Chat) -> None:
+    chat_id = chat.id or 0
+    photo = chat.photo
+    photo_unique_id = photo.big_photo_unique_id if photo else None
+    photo_file_id = photo.big_file_id if photo else None
+    await insert_chat_history(
+        ctx.pool,
+        ctx.account_id,
+        chat_id,
+        0,
+        "meta",
+        chat.title,
+        photo_unique_id,
+        None,
+        datetime.now(UTC),
+        str(chat),
+    )
+    if photo_file_id and photo_unique_id:
+        await note_avatar(
+            ctx.pool, ctx.account_id, chat_id, "chat", photo_unique_id, photo_file_id
+        )
+
+
+async def save_chat(ctx: CaptureContext, chat: Chat) -> None:
+    if (chat.id or 0) > 0:
+        await save_private(ctx, chat)
+    else:
+        await save_group(ctx, chat)