ci: remove redundant docker-publish workflow

release.yaml already builds and pushes Docker images (4 backend variants
+ web) to GHCR and Docker Hub when semantic-release creates a new
version. docker-publish.yaml triggered on v*.*.* tags, causing
duplicate Docker builds on every release.

.github/workflows/docker-publish.yaml

@@ -1,151 +0,0 @@
-name: Publish Docker Images
-
-on:
-  push:
-    tags:
-      - "v*.*.*"
-
-env:
-  GHCR_IMAGE: ghcr.io/${{ github.repository }}
-  DOCKERHUB_IMAGE: digitop/goclaw
-
-permissions:
-  contents: read
-  packages: write
-
-jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          # Base: backend API-only, no web UI, no runtimes
-          - variant: base
-            suffix: "-base"
-            enable_otel: "false"
-            enable_embedui: "false"
-            enable_python: "false"
-            enable_full_skills: "false"
-          # Latest: backend + embedded web UI + Python
-          - variant: latest
-            suffix: ""
-            enable_otel: "false"
-            enable_embedui: "true"
-            enable_python: "true"
-            enable_full_skills: "false"
-          # Full: all runtimes + skills pre-installed
-          - variant: full
-            suffix: "-full"
-            enable_otel: "false"
-            enable_embedui: "true"
-            enable_python: "true"
-            enable_full_skills: "true"
-          # OTel: latest + OpenTelemetry tracing
-          - variant: otel
-            suffix: "-otel"
-            enable_otel: "true"
-            enable_embedui: "true"
-            enable_python: "true"
-            enable_full_skills: "false"
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ${{ env.GHCR_IMAGE }}
-            ${{ env.DOCKERHUB_IMAGE }}
-          tags: |
-            type=semver,pattern={{version}},suffix=${{ matrix.suffix }}
-            type=semver,pattern={{major}}.{{minor}},suffix=${{ matrix.suffix }}
-            type=raw,value=latest,enable=${{ matrix.suffix == '' }},suffix=
-            type=raw,value=${{ matrix.variant }},enable=${{ matrix.suffix != '' }}
-
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          build-args: |
-            ENABLE_OTEL=${{ matrix.enable_otel }}
-            ENABLE_EMBEDUI=${{ matrix.enable_embedui }}
-            ENABLE_PYTHON=${{ matrix.enable_python }}
-            ENABLE_FULL_SKILLS=${{ matrix.enable_full_skills }}
-            VERSION=${{ github.ref_name }}
-          cache-from: type=gha,scope=${{ matrix.variant }}
-          cache-to: type=gha,mode=max,scope=${{ matrix.variant }}
-
-  build-and-push-web:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ${{ env.GHCR_IMAGE }}-web
-            ${{ env.DOCKERHUB_IMAGE }}-web
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
-
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: ui/web
-          platforms: linux/amd64,linux/arm64
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha,scope=web
-          cache-to: type=gha,mode=max,scope=web