Merge commit '873e5d8e39feb34a376e0efd01bf3f665dfffeb5' into concedo_experimental

# Conflicts:
#	.github/workflows/build-cmake-pkg.yml
#	.github/workflows/build-cpu.yml
#	.github/workflows/make-release.yml
#	.github/workflows/release.yml
#	.pi/gg/SYSTEM.md
#	CMakeLists.txt
#	cmake/arm64-windows-llvm.cmake
#	docs/backend/ET.md
#	docs/build.md
#	docs/development/HOWTO-add-model.md
#	ggml/CMakeLists.txt
#	ggml/src/CMakeLists.txt
#	ggml/src/ggml-cpu/CMakeLists.txt
#	ggml/src/ggml-cpu/kleidiai/kernels.cpp
#	ggml/src/ggml-cpu/kleidiai/kleidiai.cpp
#	ggml/src/ggml-hexagon/ggml-hexagon.cpp
#	ggml/src/ggml-hexagon/htp/rope-ops.c
#	ggml/src/ggml-opencl/ggml-opencl.cpp
#	ggml/src/ggml-opencl/kernels/mul_mv_q6_k_f32_flat.cl
#	ggml/src/ggml-opencl/kernels/rope.cl
#	ggml/src/ggml-sycl/dmmv.cpp
#	ggml/src/ggml-sycl/dpct/helper.hpp
#	ggml/src/ggml-sycl/element_wise.cpp
#	ggml/src/ggml-sycl/esimd.hpp
#	ggml/src/ggml-sycl/fattn-mkl.cpp
#	ggml/src/ggml-sycl/fattn-onednn.cpp
#	ggml/src/ggml-sycl/ggml-sycl.cpp
#	ggml/src/ggml-sycl/im2col.cpp
#	ggml/src/ggml-sycl/norm.cpp
#	ggml/src/ggml-sycl/rope.cpp
#	ggml/src/ggml-sycl/set_rows.cpp
#	ggml/src/ggml-vulkan/CMakeLists.txt
#	ggml/src/ggml-webgpu/ggml-webgpu.cpp
#	ggml/src/ggml-webgpu/wgsl-shaders/rope.wgsl
#	ggml/src/ggml-zendnn/CMakeLists.txt
#	scripts/make-release-desc.sh
#	scripts/sync-ggml.last
#	tests/test-backend-ops.cpp
#	tests/test-json-schema-to-grammar.cpp
#	tools/cli/README.md
#	tools/server/README.md
#	tools/ui/src/lib/constants/settings.constants.ts
#	tools/ui/src/lib/services/chat.service.ts

.github/actions/ccache-clear/action.yml

@@ -1,22 +0,0 @@
-name: "ccache-clear"
-description: "Delete all GitHub Actions caches matching a key prefix"
-inputs:
-  key:
-    description: "Cache key prefix to match and delete"
-    required: true
-
-runs:
-  using: "composite"
-  steps:
-    - name: Clear caches
-      shell: bash
-      run: |
-        CACHES=$(gh cache list --key "ccache-${{ inputs.key }}" --json id,key --jq '.[] | "\(.id) \(.key)"' 2>/dev/null)
-        if [ -z "$CACHES" ]; then
-          echo "No caches found with key prefix: ${{ inputs.key }}"
-          exit 0
-        fi
-        while read -r id key; do
-          echo "Deleting cache: $id ($key)"
-          gh cache delete "$id"
-        done <<< "$CACHES"