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/stable-diffusion-cpp/default.nix

@@ -34,13 +34,13 @@ let
 in
 effectiveStdenv.mkDerivation (finalAttrs: {
   pname = "stable-diffusion-cpp";
-  version = "master-462-c5602a6";
+  version = "master-721-8caa3f9";
 
   src = fetchFromGitHub {
     owner = "leejet";
     repo = "stable-diffusion.cpp";
-    rev = "master-462-c5602a6";
-    hash = "sha256-6uW9k30QqvozJACw+Hv4nRj9PyTzQqY/M0/CWjqrV28=";
+    rev = "master-721-8caa3f9";
+    hash = "sha256-voybvJQrG6/Puogf9vBr/3jzHBcl1MnIAsRQtswUw2U=";
     fetchSubmodules = true;
   };
 
@@ -102,12 +102,6 @@ effectiveStdenv.mkDerivation (finalAttrs: {
     (cmakeFeature "CMAKE_HIP_ARCHITECTURES" (builtins.concatStringsSep ";" rocmGpuTargets))
   ];
 
-  patchFlags = [ "-p1" ];
-  patches = [
-    ./lora_enable.patch # https://github.com/leejet/stable-diffusion.cpp/pull/1156
-    ./server_mask.patch # https://github.com/leejet/stable-diffusion.cpp/pull/1178
-  ];
-
   meta = with lib; {
     description = "Stable Diffusion inference in pure C/C++";
     homepage = "https://github.com/leejet/stable-diffusion.cpp";