build(nix): fixing the kilobase cargo build.

Author: h0lybyte

nix/ext/kilobase.nix

@@ -24,6 +24,9 @@ buildPgrxExtension_0_15_0 rec {
 
  # Cargo.toml path if not at root
  cargoRoot = "apps/kbve/kilobase";
+ 
+ # Build only the kilobase package
+ cargoBuildFlags = [ "--package" "kilobase" ];
 
  nativeBuildInputs = [ cargo ];
  buildInputs = [ postgresql ];