feat: Initial commit for OnEver Drive centralized backup system with Windows PyQt6 agent and Proxmox LXC deployment

backend/app/api/auth.py

@@ -0,0 +1,72 @@
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from app.core.database import get_db
+from app.core.security import verify_password, get_password_hash, create_access_token
+from app.models.models import User
+from app.schemas.schemas import LoginRequest, TokenResponse, UserResponse
+from app.api.deps import get_current_user
+from app.services.event_service import log_event
+
+router = APIRouter(prefix="/auth", tags=["Authentication"])
+
+@router.post("/login", response_model=TokenResponse)
+async def login(credentials: LoginRequest, db: AsyncSession = Depends(get_db)):
+    result = await db.execute(select(User).where(User.email == credentials.email.strip().lower()))
+    user = result.scalar_one_or_none()
+    
+    if not user or not verify_password(credentials.password, user.hashed_password):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect email or password"
+        )
+    
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="User account is deactivated"
+        )
+
+    access_token = create_access_token(subject=user.id, role=user.role)
+
+    await log_event(
+        db=db,
+        event_type="LOGIN",
+        message=f"User {user.email} logged in successfully.",
+        severity="INFO",
+        user_email=user.email
+    )
+
+    return {
+        "access_token": access_token,
+        "token_type": "bearer",
+        "user": {
+            "id": user.id,
+            "email": user.email,
+            "full_name": user.full_name,
+            "role": user.role
+        }
+    }
+
+@router.get("/me", response_model=UserResponse)
+async def get_me(current_user: User = Depends(get_current_user)):
+    return current_user
+
+@router.post("/seed-admin")
+async def seed_admin(db: AsyncSession = Depends(get_db)):
+    """Creates default admin if no users exist in the database."""
+    result = await db.execute(select(User))
+    first_user = result.scalar_one_or_none()
+    if first_user:
+        return {"message": "Admin already exists"}
+
+    admin = User(
+        email="admin@oneverdrive.local",
+        hashed_password=get_password_hash("Admin1234!"),
+        full_name="System Administrator",
+        role="ADMIN",
+        is_active=True
+    )
+    db.add(admin)
+    await db.commit()
+    return {"message": "Default admin created: admin@oneverdrive.local / Admin1234!"}