chore(packages): bump llama-cpp, llama-swap, and stable-diffusion-cpp

- llama-cpp: 9496 -> 9802
- llama-swap: 216 -> 230; UI embed moved upstream to internal/server/,
  skip forking tests that exec /bin/bash (unavailable in the sandbox)
- stable-diffusion-cpp: 462 -> 721; drop lora_enable.patch and
  server_mask.patch now merged upstream

packages/llama-swap/ui.nix

@@ -9,7 +9,7 @@ buildNpmPackage (finalAttrs: {
 
   postPatch = ''
     substituteInPlace vite.config.ts \
-      --replace-fail "../proxy/ui_dist" "${placeholder "out"}/ui_dist"
+      --replace-fail "../internal/server/ui_dist" "${placeholder "out"}/ui_dist"
   '';
 
   sourceRoot = "${finalAttrs.src.name}/ui-svelte";