feat(account): GET /me user endpoint only, disable cache and extra routers

Co-authored-by: Cursor <cursoragent@cursor.com>

src/application/commands/change_email_complete.py

@@ -0,0 +1,63 @@
+from src.application.abstractions import IUnitOfWork
+from src.application.contracts import IHashService, ILogger, ICache
+from src.application.domain.exceptions import ApplicationException
+from src.infrastructure.database.decorators import transactional
+
+
+class ChangeEmailCompleteCommand:
+    def __init__(
+        self,
+        unit_of_work: IUnitOfWork,
+        hash_service: IHashService,
+        cache: ICache,
+        logger: ILogger,
+    ):
+        self._unit_of_work = unit_of_work
+        self._hash_service = hash_service
+        self._cache = cache
+        self._logger = logger
+
+    @transactional
+    async def __call__(self, *, user_id: str, code: str) -> bool:
+        code = (code or '').strip()
+
+        NEW_USER_PREFIX = 'change_email:new_user:'
+        NEW_CODE_PREFIX = 'change_email:new_code:'
+
+        new_user_key = f'{NEW_USER_PREFIX}{user_id}'
+        new_code_key = f'{NEW_CODE_PREFIX}{code}'
+
+        cached_user_id = await self._cache.get(new_code_key)
+        if not cached_user_id:
+            self._logger.info(f'Change email complete failed: code not found (user_id={user_id})')
+            raise ApplicationException(400, 'Invalid or expired code')
+
+        if cached_user_id != user_id:
+            self._logger.info(f'Change email complete failed: code-user mismatch (user_id={user_id})')
+            raise ApplicationException(400, 'Invalid or expired code')
+
+        raw_value = await self._cache.get(new_user_key)
+        if not raw_value:
+            self._logger.info(f'Change email complete failed: user key missing (user_id={user_id})')
+            raise ApplicationException(400, 'Invalid or expired code')
+
+        separator_idx = raw_value.index(':')
+        code_hash = raw_value[:separator_idx]
+        new_email = raw_value[separator_idx + 1:]
+
+        ok = await self._hash_service.verify(hashed_value=code_hash, plain_value=code)
+        if not ok:
+            self._logger.info(f'Change email complete failed: code hash mismatch (user_id={user_id})')
+            raise ApplicationException(400, 'Invalid or expired code')
+
+        user = await self._unit_of_work.user_repository.set_email(user_id=user_id, email=new_email)
+        await self._cache.set_user(user_id, user)
+
+        try:
+            await self._cache.delete(new_code_key)
+            await self._cache.delete(new_user_key)
+        except Exception as e:
+            self._logger.warning(f'Change email complete cleanup failed (user_id={user_id}): {e}')
+
+        self._logger.info(f'Email changed for user_id={user_id}')
+        return True