Fix auth crashes + add CI/CD workflow

- Fix jose->pyjwt import mismatch
- Fix bcrypt->pbkdf2 password hashing
- Fix Sidebar logout prop (ReferenceError)
- Add .gitea/workflows/deploy.yml for automated deployment

dashboard/backend/auth.py

@@ -1,6 +1,6 @@
 from datetime import datetime, timedelta
 from typing import Optional
-from jose import JWTError, jwt
+import jwt
 from passlib.context import CryptContext
 import pyotp
 from fastapi import Depends, HTTPException, status
@@ -8,7 +8,7 @@ from fastapi.security import OAuth2PasswordBearer
 import config
 
 # Password handling
-pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+pwd_context = CryptContext(schemes=["pbkdf2_sha256"], deprecated="auto")
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl="api/auth/login")
 
 def verify_password(plain_password, hashed_password):
@@ -42,7 +42,7 @@ async def get_current_user(token: str = Depends(oauth2_scheme)):
         # For this single-user system, we just check if it matches config.
         if username != config.ADMIN_USER:
              raise credentials_exception
-    except JWTError:
+    except jwt.PyJWTError:
         raise credentials_exception
     return username
 
@@ -56,7 +56,7 @@ async def get_current_user_ws(token: str):
         username: str = payload.get("sub")
         if username is None or username != config.ADMIN_USER:
             raise credentials_exception
-    except JWTError:
+    except jwt.PyJWTError:
         raise credentials_exception
     return username