Add support for local files and optimized caching

Signed-off-by: Felipe Cardoso <felipe.cardoso@hotmail.it>

backend/app/api/routes/samples.py

@@ -10,7 +10,7 @@ router = APIRouter()
 @router.get("/list", response_model=List[Sample])
 async def list_samples(
         request: Request,
-        limit: int = Query(20, ge=1, le=100),
+        limit: int = Query(20, ge=1, le=1000),
         offset: int = Query(0, ge=0)
 ):
     """