feat(validation): complete validation editor and master data modules

validation-suite/backend/mercury/app/services/auth_service.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from fastapi import HTTPException, status
+from sqlalchemy.orm import Session
+
+from app.core.security import create_access_token, verify_password
+from app.repositories.domain import UserRepository
+
+
+class AuthService:
+    def __init__(self, session: Session) -> None:
+        self.users = UserRepository(session)
+
+    def login(self, email: str, password: str) -> str:
+        user = self.users.by_email(email)
+        if user is None or not user.is_active or not verify_password(password, user.password_hash):
+            raise HTTPException(
+                status_code=status.HTTP_401_UNAUTHORIZED,
+                detail="Invalid credentials",
+                headers={"WWW-Authenticate": "Bearer"},
+            )
+        return create_access_token(user.id, user.role.value)
+