refactor: project architecture refactor, container splitting

backend/bot/utils/telegram_markup.py

@@ -0,0 +1,38 @@
+from typing import Optional
+
+from aiogram import types
+
+PROFILE_BUTTON_ERROR_CODES = ("BUTTON_USER_INVALID", "BUTTON_USER_PRIVACY_RESTRICTED")
+TG_USER_LINK_PREFIX = "tg://user?id="
+
+
+def remove_profile_link_buttons(
+    markup: Optional[types.InlineKeyboardMarkup],
+) -> Optional[types.InlineKeyboardMarkup]:
+    """Remove buttons that point to tg://user links to avoid privacy-related errors."""
+    inline_keyboard = getattr(markup, "inline_keyboard", None)
+    if not markup or not inline_keyboard:
+        return None
+
+    cleaned_rows = []
+    for row in inline_keyboard:
+        filtered_row = [
+            button
+            for button in row
+            if not (
+                getattr(button, "url", None) and str(button.url).startswith(TG_USER_LINK_PREFIX)
+            )
+        ]
+        if filtered_row:
+            cleaned_rows.append(filtered_row)
+
+    if not cleaned_rows:
+        return None
+
+    return types.InlineKeyboardMarkup(inline_keyboard=cleaned_rows)
+
+
+def is_profile_link_error(exc: BaseException) -> bool:
+    """Return True if Telegram rejected markup because of profile link buttons."""
+    message = getattr(exc, "message", "") or str(exc)
+    return any(code in message for code in PROFILE_BUTTON_ERROR_CODES)