fix(api): disable redirect_slashes to fix Vite proxy routing

When using Vite proxy with path rewrite (/api/pdl -> /pdl), FastAPI's
automatic redirect from /pdl to /pdl/ broke the routing because the
redirect URL (/pdl/) wasn't rewritten back to /api/pdl/ by the proxy.

Changes:
- Disable redirect_slashes in FastAPI app to prevent 307 redirects
- Change "/" routes to "" in pdl.py and roles.py routers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: Clément VALENTIN

apps/api/src/main.py

@@ -96,6 +96,10 @@ def get_servers() -> list[dict[str, str]]:
         "clientId": "",
         "usePkceWithAuthorizationCodeGrant": False,
     },
+    # Disable automatic redirect from /path to /path/ to avoid 307 redirects
+    # that break proxy routing (Vite proxy rewrites /api/path -> /path,
+    # but redirect response /path/ doesn't get rewritten back to /api/path/)
+    redirect_slashes=False,
 )
 
 # Mount static files for custom Swagger CSS

apps/api/src/routers/pdl.py

@@ -70,7 +70,7 @@ class PDLUpdateOrder(BaseModel):
     pdl_orders: list[PDLOrderItem]
 
 
-@router.get("/", response_model=APIResponse)
+@router.get("", response_model=APIResponse)
 async def list_pdls(
     current_user: User = Depends(get_current_user), db: AsyncSession = Depends(get_db)
 ) -> APIResponse:
@@ -112,7 +112,7 @@ async def list_pdls(
     return APIResponse(success=True, data=[pdl.model_dump() for pdl in pdl_responses])
 
 
-@router.post("/", response_model=APIResponse, status_code=status.HTTP_201_CREATED)
+@router.post("", response_model=APIResponse, status_code=status.HTTP_201_CREATED)
 async def create_pdl(
     pdl_data: PDLCreate = Body(
         ...,

apps/api/src/routers/roles.py

@@ -14,7 +14,7 @@
 router = APIRouter(prefix="/admin/roles", tags=["Roles"])
 
 
-@router.get("/", response_model=APIResponse)
+@router.get("", response_model=APIResponse)
 async def list_roles(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db)