feat(llama-cpp,turboquant): extend CPU_ALL_VARIANTS to arm64 + turboquant

- llama-cpp: x86 AND arm64 now use the single llama-cpp-cpu-all build
  (only hipblas keeps the fallback build). ggml's arm64 variant table
  (armv8.x / armv9.x, plus apple_m* on darwin) is selected at runtime.
- turboquant: same recipe via a turboquant-cpu-all target. turboquant
  copies backend/cpp/llama-cpp's CMakeLists.txt + Makefile per flavor, so
  the hw_grpc_proto STATIC fix and the SHARED_LIBS / EXTRA_CMAKE_ARGS
  make-vars are inherited; the target just passes SHARED_LIBS=ON, the DL
  flags and --target ggml through, then collects the .so set. run.sh and
  package.sh updated to ship/select turboquant-cpu-all.
- Makefile lib-collection find now also matches *.dylib (for the darwin
  build, which emits dylibs rather than .so).

ik-llama-cpp is intentionally left unchanged: its pinned ggml has no
CPU_ALL_VARIANTS support and its IQK kernels require AVX2, so the
per-microarch dynamic backend set does not apply.

Scope still excludes the darwin packaging wiring (separate change).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

backend/cpp/llama-cpp/Makefile

@@ -149,7 +149,7 @@ llama-cpp-cpu-all: llama.cpp
 	$(MAKE) SHARED_LIBS=ON EXTRA_CMAKE_ARGS="-DGGML_BACKEND_DL=ON -DGGML_CPU_ALL_VARIANTS=ON" TARGET="--target grpc-server --target ggml" VARIANT="llama-cpp-cpu-all-build" build-llama-cpp-grpc-server
 	cp -rfv $(CURRENT_MAKEFILE_DIR)/../llama-cpp-cpu-all-build/grpc-server llama-cpp-cpu-all
 	rm -rf ggml-shared-libs && mkdir -p ggml-shared-libs
-	find $(CURRENT_MAKEFILE_DIR)/../llama-cpp-cpu-all-build/llama.cpp/build -name '*.so*' -exec cp -av {} ggml-shared-libs/ \;
+	find $(CURRENT_MAKEFILE_DIR)/../llama-cpp-cpu-all-build/llama.cpp/build \( -name '*.so*' -o -name '*.dylib' \) -exec cp -av {} ggml-shared-libs/ \;
 	@echo "Collected ggml shared backends:" && ls -la ggml-shared-libs/
 
 llama-cpp-grpc: llama.cpp