Restructure into full project layout

backend/app/core/deps.py

@@ -0,0 +1,37 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+
+from app.core.database import get_db
+from app.core.security import decode_token
+from app.models.user import User, UserRole
+
+bearer = HTTPBearer()
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(bearer),
+    db: AsyncSession = Depends(get_db),
+) -> User:
+    user_id = decode_token(credentials.credentials)
+    if not user_id:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
+
+    result = await db.execute(select(User).where(User.id == user_id))
+    user = result.scalar_one_or_none()
+    if not user or not user.is_active:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found")
+    return user
+
+
+async def get_approved_user(user: User = Depends(get_current_user)) -> User:
+    if user.role == UserRole.PENDING:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Account pending approval")
+    return user
+
+
+async def get_admin_user(user: User = Depends(get_approved_user)) -> User:
+    if user.role != UserRole.ADMIN:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Admin access required")
+    return user