chore(llm): clean up models & fix llama-cpp issue

packages/llama-swap/ui.nix

@@ -0,0 +1,25 @@
+{ llama-swap
+, buildNpmPackage
+,
+}:
+
+buildNpmPackage (finalAttrs: {
+  pname = "${llama-swap.pname}-ui";
+  inherit (llama-swap) version src npmDepsHash;
+
+  postPatch = ''
+    substituteInPlace vite.config.ts \
+      --replace-fail "../proxy/ui_dist" "${placeholder "out"}/ui_dist"
+  '';
+
+  sourceRoot = "${finalAttrs.src.name}/ui";
+
+  # bundled "ui_dist" doesn't need node_modules
+  postInstall = ''
+    rm -rf $out/lib
+  '';
+
+  meta = (removeAttrs llama-swap.meta [ "mainProgram" ]) // {
+    description = "${llama-swap.meta.description} - UI";
+  };
+})