feat: add QR login and browser-backed web tools

tests/test_manager_qr.py

@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+import tempfile
+import unittest
+from pathlib import Path
+from unittest.mock import AsyncMock, MagicMock, patch
+
+from app.config import AccountConfig, AppConfig
+from app.manager import AccountManager
+
+
+class AccountManagerQrTests(unittest.IsolatedAsyncioTestCase):
+    async def test_qr_flag_is_passed_when_starting_account(self) -> None:
+        with tempfile.TemporaryDirectory() as temp_dir:
+            config = AppConfig(
+                api_id=123456,
+                api_hash="hash",
+                session_dir=Path(temp_dir),
+                accounts=[AccountConfig(name="personal", session="personal", use_qr=True)],
+            )
+            manager = AccountManager(config)
+            client = MagicMock()
+            client.start = AsyncMock()
+            client.get_me = AsyncMock(return_value=MagicMock(id=42))
+
+            with (
+                patch.object(AccountManager, "_make_client", return_value=client),
+                patch("app.manager.register_common_handlers"),
+            ):
+                await manager.start_account(manager.states[0])
+
+        client.start.assert_awaited_once_with(use_qr=True)
+        self.assertEqual(manager.states[0].status, "running")
+
+
+if __name__ == "__main__":
+    unittest.main()