frontend: add username login

core/data/schema/card.py

@@ -121,7 +121,7 @@ class CardData(BaseData):
         result = await self.execute(sql)
         if result is None:
             self.logger.warn(f"Failed to update last login time for {access_code}")
-    
+
     def to_access_code(self, luid: str) -> str:
         """
         Given a felica cards internal 16 hex character luid, convert it to a 0-padded 20 digit access code as a string

core/data/schema/user.py

@@ -120,3 +120,7 @@ class UserData(BaseData):
 
         result = await self.execute(sql)
         return result is not None
+
+    async def get_user_by_username(self, username: str) -> Optional[Row]:
+        result = await self.execute(aime_user.select(aime_user.c.username == username))
+        if result: return result.fetchone()