Remove Home Assistant addon integration

- Remove homeassistant-addon directory
- Remove addon workflow
- Remove repository.yaml
- Update README to focus on Docker and source installation
- Keep ARM/Raspberry Pi support (arm64, armv7)

.github/workflows/addon.yml

@@ -1,155 +0,0 @@
-name: Home Assistant Add-on
-
-on:
-  push:
-    branches:
-      - main
-    paths:
-      - 'homeassistant-addon/**'
-      - 'cmd/**'
-      - 'internal/**'
-      - 'pkg/**'
-      - 'data/**'
-      - 'webui/**'
-      - 'go.mod'
-      - 'go.sum'
-      - 'Makefile'
-      - '.github/workflows/addon.yml'
-    tags:
-      - 'v*'
-  workflow_dispatch:
-
-env:
-  BUILD_NAME: strix
-
-jobs:
-  build:
-    name: Build Add-on
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-    strategy:
-      matrix:
-        arch: [aarch64, amd64, armv7]
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '1.24'
-
-      - name: Get version
-        id: version
-        run: |
-          if [[ $GITHUB_REF == refs/tags/* ]]; then
-            VERSION=${GITHUB_REF#refs/tags/v}
-          else
-            VERSION="dev-$(git rev-parse --short HEAD)"
-          fi
-          echo "version=$VERSION" >> $GITHUB_OUTPUT
-          echo "Version: $VERSION"
-
-      - name: Build binary for ${{ matrix.arch }}
-        run: |
-          case "${{ matrix.arch }}" in
-            aarch64)
-              GOARCH=arm64
-              ;;
-            amd64)
-              GOARCH=amd64
-              ;;
-            armv7)
-              GOARCH=arm
-              GOARM=7
-              ;;
-          esac
-
-          CGO_ENABLED=0 GOOS=linux GOARCH=$GOARCH GOARM=${GOARM:-} go build \
-            -ldflags="-s -w -X main.Version=${{ steps.version.outputs.version }}" \
-            -o homeassistant-addon/strix \
-            cmd/strix/main.go
-
-      - name: Copy required files
-        run: |
-          cp -r data homeassistant-addon/
-          cp -r webui homeassistant-addon/
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push
-        uses: docker/build-push-action@v5
-        with:
-          context: ./homeassistant-addon
-          file: ./homeassistant-addon/Dockerfile
-          platforms: linux/${{ matrix.arch == 'aarch64' && 'arm64' || matrix.arch == 'amd64' && 'amd64' || 'arm/v7' }}
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: |
-            ghcr.io/${{ github.repository_owner }}/strix-addon-${{ matrix.arch }}:latest
-            ghcr.io/${{ github.repository_owner }}/strix-addon-${{ matrix.arch }}:${{ steps.version.outputs.version }}
-          build-args: |
-            BUILD_FROM=ghcr.io/home-assistant/${{ matrix.arch }}-base:3.20
-            STRIX_VERSION=${{ steps.version.outputs.version }}
-          cache-from: type=gha,scope=${{ matrix.arch }}
-          cache-to: type=gha,mode=max,scope=${{ matrix.arch }}
-
-  update-repository:
-    name: Update Repository File
-    needs: build
-    if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Get version
-        id: version
-        run: |
-          if [[ $GITHUB_REF == refs/tags/* ]]; then
-            VERSION=${GITHUB_REF#refs/tags/v}
-          else
-            VERSION="dev-$(git rev-parse --short HEAD)"
-          fi
-          echo "version=$VERSION" >> $GITHUB_OUTPUT
-
-      - name: Update config.yaml version
-        run: |
-          sed -i "s/^version:.*/version: \"${{ steps.version.outputs.version }}\"/" homeassistant-addon/config.yaml
-
-      - name: Create/Update repository.yaml
-        run: |
-          cat > repository.yaml <<EOF
-          name: Strix Home Assistant Add-ons
-          url: https://github.com/${{ github.repository }}
-          maintainer: ${{ github.repository_owner }}
-          EOF
-
-      - name: Commit changes
-        if: startsWith(github.ref, 'refs/tags/')
-        run: |
-          git config --local user.email "github-actions[bot]@users.noreply.github.com"
-          git config --local user.name "github-actions[bot]"
-          git add homeassistant-addon/config.yaml repository.yaml
-          git diff --quiet && git diff --staged --quiet || git commit -m "Update add-on to version ${{ steps.version.outputs.version }}"
-
-      - name: Push changes
-        if: startsWith(github.ref, 'refs/tags/')
-        uses: ad-m/github-push-action@master
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          branch: main