Ruff enable type annotations rule (#362)

This PR enables the ruff rule for return type annotations (ANN), and
adds the ty package for type checking.

media_manager/auth/users.py

@@ -1,7 +1,7 @@
 import contextlib
 import logging
 import uuid
-from typing import Any, Optional, override
+from typing import Any, AsyncGenerator, Optional, override
 
 from fastapi import Depends, Request
 from fastapi.responses import RedirectResponse, Response
@@ -59,7 +59,9 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
             await self.update(user=user, user_update=updated_user)
 
     @override
-    async def on_after_register(self, user: User, request: Optional[Request] = None):
+    async def on_after_register(
+        self, user: User, request: Optional[Request] = None
+    ) -> None:
         log.info(f"User {user.id} has registered.")
         if user.email in config.admin_emails:
             updated_user = UserUpdate(is_superuser=True, is_verified=True)
@@ -68,7 +70,7 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
     @override
     async def on_after_forgot_password(
         self, user: User, token: str, request: Optional[Request] = None
-    ):
+    ) -> None:
         link = f"{MediaManagerConfig().misc.frontend_url}web/login/reset-password?token={token}"
         log.info(f"User {user.id} has forgot their password. Reset Link: {link}")
 
@@ -83,7 +85,7 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
             <p>Hi {user.email},
             <br>
             <br>
-            if you forgot your password, <a href="{link}">reset you password here</a>.<br>
+            if you forgot your password, <a href=\"{link}\">reset you password here</a>.<br>
             If you did not request a password reset, you can ignore this email.</p>
             <br>
             <br>
@@ -99,23 +101,27 @@ class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
     @override
     async def on_after_reset_password(
         self, user: User, request: Optional[Request] = None
-    ):
+    ) -> None:
         log.info(f"User {user.id} has reset their password.")
 
     @override
     async def on_after_request_verify(
         self, user: User, token: str, request: Optional[Request] = None
-    ):
+    ) -> None:
         log.info(
             f"Verification requested for user {user.id}. Verification token: {token}"
         )
 
     @override
-    async def on_after_verify(self, user: User, request: Optional[Request] = None):
+    async def on_after_verify(
+        self, user: User, request: Optional[Request] = None
+    ) -> None:
         log.info(f"User {user.id} has been verified")
 
 
-async def get_user_manager(user_db: SQLAlchemyUserDatabase = Depends(get_user_db)):
+async def get_user_manager(
+    user_db: SQLAlchemyUserDatabase = Depends(get_user_db),
+) -> AsyncGenerator[UserManager, None]:
     yield UserManager(user_db)
 
 
@@ -124,7 +130,7 @@ get_user_db_context = contextlib.asynccontextmanager(get_user_db)
 get_user_manager_context = contextlib.asynccontextmanager(get_user_manager)
 
 
-async def create_default_admin_user():
+async def create_default_admin_user() -> None:
     """Create a default admin user if no users exist in the database"""
     try:
         async with get_async_session_context() as session:
@@ -177,10 +183,6 @@ async def create_default_admin_user():
         )
 
 
-async def get_user_manager(user_db: SQLAlchemyUserDatabase = Depends(get_user_db)):
-    yield UserManager(user_db)
-
-
 def get_jwt_strategy() -> JWTStrategy[models.UP, models.ID]:
     return JWTStrategy(secret=SECRET, lifetime_seconds=LIFETIME)