fix various type annotation issues

2 files changed, 3 insertions, 3 deletions

diff --git a/backend/authentication/backend.py b/backend/authentication/backend.py
index 38668eb..e4699bd 100644
--- a/backend/authentication/backend.py
+++ b/backend/authentication/backend.py
@@ -14,7 +14,7 @@ class JWTAuthenticationBackend(authentication.AuthenticationBackend, ABC):
     """Custom Starlette authentication backend for JWT."""
 
     @staticmethod
-    def get_token_from_header(header: str) -> t.Optional[str]:
+    def get_token_from_header(header: str) -> str:
         """Parse JWT token from header value."""
         try:
             prefix, token = header.split()
@@ -32,7 +32,7 @@ class JWTAuthenticationBackend(authentication.AuthenticationBackend, ABC):
 
     async def authenticate(
         self, request: Request
-    ) -> t.Optional[t.Tuple[authentication.AuthCredentials, authentication.BaseUser]]:
+    ) -> t.Optional[tuple[authentication.AuthCredentials, authentication.BaseUser]]:
         """Handles JWT authentication process."""
         if "Authorization" not in request.headers:
             return
diff --git a/backend/authentication/user.py b/backend/authentication/user.py
index afa243f..3bed0a1 100644
--- a/backend/authentication/user.py
+++ b/backend/authentication/user.py
@@ -7,7 +7,7 @@ from starlette.authentication import BaseUser
 class User(BaseUser, ABC):
     """Starlette BaseUser implementation for JWT authentication."""
 
-    def __init__(self, token: str, payload: t.Dict) -> None:
+    def __init__(self, token: str, payload: dict[str, t.Any]) -> None:
         self.token = token
         self.payload = payload