ci(github): add GitHub Actions workflows for Docker image publishing and support matrix

- Introduced a workflow to publish Docker images on tag push and manual triggers.
- Added a support matrix workflow to test across multiple OS and Python versions.

.github/workflows/publish-docker.yml

@@ -0,0 +1,61 @@
+name: Publish Docker Images
+
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Image tag to publish (without image suffix)"
+        required: true
+        type: string
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_TAG: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref_name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - image_suffix: cpu-diarization-sortformer
+            dockerfile: Dockerfile.cpu
+            extras: cpu,diarization-sortformer
+          - image_suffix: cu129-diarization-sortformer
+            dockerfile: Dockerfile
+            extras: gpu-cu129,diarization-sortformer
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set lowercase owner
+        id: owner
+        run: echo "value=${GITHUB_REPOSITORY_OWNER,,}" >> "${GITHUB_OUTPUT}"
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./${{ matrix.dockerfile }}
+          push: true
+          build-args: |
+            EXTRAS=${{ matrix.extras }}
+          tags: |
+            ghcr.io/${{ steps.owner.outputs.value }}/whisperlivekit:${{ env.IMAGE_TAG }}-${{ matrix.image_suffix }}
+            ghcr.io/${{ steps.owner.outputs.value }}/whisperlivekit:latest-${{ matrix.image_suffix }}

.github/workflows/support-matrix.yml

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+name: Support Matrix
+
+on:
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      timeout_sec:
+        description: "Per-case timeout in seconds"
+        required: true
+        default: "300"
+
+permissions:
+  contents: read
+
+jobs:
+  test-and-support-matrix:
+    name: |
+      ${{ matrix.os }} | py${{ matrix.python-version }} | tests + support matrix
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.11", "3.12", "3.13"]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v6
+
+      - name: Install dependencies for tests
+        run: uv sync --extra test --python ${{ matrix.python-version }}
+
+      # - name: Run unit tests
+      #   run: uv run pytest tests/ -v
+
+      - name: Run compatibility matrix
+        shell: bash
+        env:
+          MATRIX_PY: ${{ matrix.python-version }}
+          TIMEOUT_SEC: ${{ github.event.inputs.timeout_sec || '300' }}
+        run: |
+          set -euo pipefail
+
+          base_port=8010
+
+          run_case() {
+            local name="$1"
+            shift 1
+
+            echo "[matrix] scenario=${name}"
+
+            uv run wlk \
+              --host 127.0.0.1 \
+              --port "${base_port}" \
+              --warmup-file "" \
+              --model tiny \
+              "$@" &
+            local server_pid=$!
+
+            cleanup() {
+              kill "${server_pid}" >/dev/null 2>&1 || true
+              wait "${server_pid}" >/dev/null 2>&1 || true
+            }
+            trap cleanup RETURN
+
+            local ready=0
+            local checks=$((TIMEOUT_SEC / 2))
+            local i=0
+            while [ "${i}" -lt "${checks}" ]; do
+              if python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:${base_port}/', timeout=2).read(1)" >/dev/null 2>&1; then
+                ready=1
+                break
+              fi
+              if ! kill -0 "${server_pid}" >/dev/null 2>&1; then
+                break
+              fi
+              sleep 2
+              i=$((i + 1))
+            done
+
+            if [ "${ready}" -ne 1 ]; then
+              echo "[matrix] ${name} failed (startup_not_ready)"
+              return 1
+            fi
+
+            echo "[matrix] ${name} passed"
+            base_port=$((base_port + 1))
+          }
+
+          # FW profile: cpu + diart + sortformer + translation
+          export UV_PROJECT_ENVIRONMENT=".ci-envs/${{ matrix.os }}-py${{ matrix.python-version }}-fw"
+          uv sync --python "${MATRIX_PY}" --no-dev \
+            --extra cpu \
+            --extra diarization-diart \
+            --extra diarization-sortformer \
+            --extra translation
+
+          run_case \
+            "fw-diart-translation" \
+            --backend faster-whisper \
+            --diarization \
+            --diarization-backend diart \
+            --language en \
+            --target-language es
+
+          run_case \
+            "fw-sortformer-translation" \
+            --backend faster-whisper \
+            --diarization \
+            --diarization-backend sortformer \
+            --language en \
+            --target-language es
+
+          unset UV_PROJECT_ENVIRONMENT
+
+          # Voxtral profile: cpu + diart + voxtral-hf + translation
+          export UV_PROJECT_ENVIRONMENT=".ci-envs/${{ matrix.os }}-py${{ matrix.python-version }}-voxtral"
+          uv sync --python "${MATRIX_PY}" --no-dev \
+            --extra cpu \
+            --extra diarization-diart \
+            --extra voxtral-hf \
+            --extra translation
+
+          run_case \
+            "voxtral-diart-translation" \
+            --backend voxtral \
+            --diarization \
+            --diarization-backend diart \
+            --language en \
+            --target-language es
+
+          unset UV_PROJECT_ENVIRONMENT