Refactor Nginx configuration and update project dependencies

- Cleaned up the Nginx configuration for the Coolify deployment, ensuring proper formatting and organization.
- Updated the `pyproject.toml` file to maintain consistent formatting.
- Reformatted the `requirements.txt` file for better readability while keeping the dependencies unchanged.

backend/app/dependencies.py

@@ -1,42 +1,42 @@
-"""FastAPI dependencies (e.g. authenticated user extraction)."""
-from fastapi import Depends, HTTPException, status
-from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
-from jose import JWTError
-
-from .services.auth import decode_token
-
-_bearer = HTTPBearer()
-
-
-async def get_current_user(
-    credentials: HTTPAuthorizationCredentials = Depends(_bearer),
-) -> dict:
-    """Extract and validate the Bearer JWT. Returns the token payload."""
-    credentials_error = HTTPException(
-        status_code=status.HTTP_401_UNAUTHORIZED,
-        detail="Could not validate credentials.",
-        headers={"WWW-Authenticate": "Bearer"},
-    )
-    try:
-        payload = decode_token(credentials.credentials)
-    except JWTError:
-        raise credentials_error
-
-    if payload.get("type") != "access":
-        raise credentials_error
-
-    user_id: str | None = payload.get("sub")
-    if user_id is None:
-        raise credentials_error
-
-    return {"id": user_id, "email": payload.get("email"), "role": payload.get("role")}
-
-
-async def require_admin(current_user: dict = Depends(get_current_user)) -> dict:
-    """Raise 403 if the authenticated user is not an admin."""
-    if current_user.get("role") != "admin":
-        raise HTTPException(
-            status_code=status.HTTP_403_FORBIDDEN,
-            detail="Admin access required.",
-        )
-    return current_user
+"""FastAPI dependencies (e.g. authenticated user extraction)."""
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
+from jose import JWTError
+
+from .services.auth import decode_token
+
+_bearer = HTTPBearer()
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(_bearer),
+) -> dict:
+    """Extract and validate the Bearer JWT. Returns the token payload."""
+    credentials_error = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials.",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = decode_token(credentials.credentials)
+    except JWTError:
+        raise credentials_error
+
+    if payload.get("type") != "access":
+        raise credentials_error
+
+    user_id: str | None = payload.get("sub")
+    if user_id is None:
+        raise credentials_error
+
+    return {"id": user_id, "email": payload.get("email"), "role": payload.get("role")}
+
+
+async def require_admin(current_user: dict = Depends(get_current_user)) -> dict:
+    """Raise 403 if the authenticated user is not an admin."""
+    if current_user.get("role") != "admin":
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Admin access required.",
+        )
+    return current_user