Add pyproject.toml for consolidated project configuration and replace Black, isort, and Flake8 with Ruff

- Introduced `pyproject.toml` to centralize backend tool configurations (e.g., Ruff, mypy, coverage, pytest).
- Replaced Black, isort, and Flake8 with Ruff for linting, formatting, and import sorting.
- Updated `requirements.txt` to include Ruff and remove replaced tools.
- Added `Makefile` to streamline development workflows with commands for linting, formatting, type-checking, testing, and cleanup.

backend/app/api/dependencies/auth.py

@@ -1,12 +1,10 @@
-from typing import Optional
-
-from fastapi import Depends, HTTPException, status, Header
+from fastapi import Depends, Header, HTTPException, status
 from fastapi.security import OAuth2PasswordBearer
 from fastapi.security.utils import get_authorization_scheme_param
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.core.auth import get_token_data, TokenExpiredError, TokenInvalidError
+from app.core.auth import TokenExpiredError, TokenInvalidError, get_token_data
 from app.core.database import get_db
 from app.models.user import User
 
@@ -15,8 +13,7 @@ oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
 
 
 async def get_current_user(
-        db: AsyncSession = Depends(get_db),
-        token: str = Depends(oauth2_scheme)
+    db: AsyncSession = Depends(get_db), token: str = Depends(oauth2_scheme)
 ) -> User:
     """
     Get the current authenticated user.
@@ -36,21 +33,17 @@ async def get_current_user(
         token_data = get_token_data(token)
 
         # Get user from database
-        result = await db.execute(
-            select(User).where(User.id == token_data.user_id)
-        )
+        result = await db.execute(select(User).where(User.id == token_data.user_id))
         user = result.scalar_one_or_none()
 
         if not user:
             raise HTTPException(
-                status_code=status.HTTP_404_NOT_FOUND,
-                detail="User not found"
+                status_code=status.HTTP_404_NOT_FOUND, detail="User not found"
             )
 
         if not user.is_active:
             raise HTTPException(
-                status_code=status.HTTP_403_FORBIDDEN,
-                detail="Inactive user"
+                status_code=status.HTTP_403_FORBIDDEN, detail="Inactive user"
             )
 
         return user
@@ -59,19 +52,17 @@ async def get_current_user(
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
             detail="Token expired",
-            headers={"WWW-Authenticate": "Bearer"}
+            headers={"WWW-Authenticate": "Bearer"},
         )
     except TokenInvalidError:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
             detail="Could not validate credentials",
-            headers={"WWW-Authenticate": "Bearer"}
+            headers={"WWW-Authenticate": "Bearer"},
         )
 
 
-def get_current_active_user(
-        current_user: User = Depends(get_current_user)
-) -> User:
+def get_current_active_user(current_user: User = Depends(get_current_user)) -> User:
     """
     Check if the current user is active.
 
@@ -86,15 +77,12 @@ def get_current_active_user(
     """
     if not current_user.is_active:
         raise HTTPException(
-            status_code=status.HTTP_403_FORBIDDEN,
-            detail="Inactive user"
+            status_code=status.HTTP_403_FORBIDDEN, detail="Inactive user"
         )
     return current_user
 
 
-def get_current_superuser(
-        current_user: User = Depends(get_current_user)
-) -> User:
+def get_current_superuser(current_user: User = Depends(get_current_user)) -> User:
     """
     Check if the current user is a superuser.
 
@@ -109,13 +97,12 @@ def get_current_superuser(
     """
     if not current_user.is_superuser:
         raise HTTPException(
-            status_code=status.HTTP_403_FORBIDDEN,
-            detail="Not enough permissions"
+            status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions"
         )
     return current_user
 
 
-async def get_optional_token(authorization: str = Header(None)) -> Optional[str]:
+async def get_optional_token(authorization: str = Header(None)) -> str | None:
     """
     Get the token from the Authorization header without requiring it.
 
@@ -139,9 +126,8 @@ async def get_optional_token(authorization: str = Header(None)) -> Optional[str]
 
 
 async def get_optional_current_user(
-        db: AsyncSession = Depends(get_db),
-        token: Optional[str] = Depends(get_optional_token)
-) -> Optional[User]:
+    db: AsyncSession = Depends(get_db), token: str | None = Depends(get_optional_token)
+) -> User | None:
     """
     Get the current user if authenticated, otherwise return None.
     Useful for endpoints that work with both authenticated and unauthenticated users.
@@ -158,12 +144,10 @@ async def get_optional_current_user(
 
     try:
         token_data = get_token_data(token)
-        result = await db.execute(
-            select(User).where(User.id == token_data.user_id)
-        )
+        result = await db.execute(select(User).where(User.id == token_data.user_id))
         user = result.scalar_one_or_none()
         if not user or not user.is_active:
             return None
         return user
     except (TokenExpiredError, TokenInvalidError):
-        return None
+        return None