fix: CI typecheck and native ARM Docker builds for v1.0.3

Fix TypeScript errors blocking CI, split Docker publish into
native amd64/arm64 jobs with manifest merge, and add npm cache mounts.

.github/workflows/docker-publish.yml

@@ -13,9 +13,19 @@ env:
   IMAGE_NAME: pichost
 
 jobs:
-  build-and-push:
+  build:
     if: ${{ !contains(github.event.head_commit.message, '[skip docker]') }}
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+            suffix: amd64
+          - platform: linux/arm64
+            runner: ubuntu-24.04-arm
+            suffix: arm64
+    runs-on: ${{ matrix.runner }}
     env:
       DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
       DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -23,9 +33,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -35,22 +42,58 @@ jobs:
           username: ${{ env.DOCKERHUB_USERNAME }}
           password: ${{ env.DOCKERHUB_TOKEN }}
 
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}
-          tags: |
-            type=raw,value=latest
-            type=semver,pattern={{version}}
+      - name: Resolve version
+        id: version
+        run: |
+          if [ "${{ github.ref_type }}" = "tag" ]; then
+            echo "value=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
+          else
+            echo "value=dev" >> "$GITHUB_OUTPUT"
+          fi
 
-      - name: Build and push
+      - name: Build and push platform image
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          platforms: ${{ matrix.platform }}
+          tags: |
+            ${{ env.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.value }}-${{ matrix.suffix }}
+          cache-from: type=gha,scope=${{ matrix.suffix }}
+          cache-to: type=gha,mode=max,scope=${{ matrix.suffix }}
+
+  merge:
+    if: ${{ !contains(github.event.head_commit.message, '[skip docker]') }}
+    needs: build
+    runs-on: ubuntu-latest
+    env:
+      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ env.DOCKERHUB_USERNAME }}
+          password: ${{ env.DOCKERHUB_TOKEN }}
+
+      - name: Resolve version
+        id: version
+        run: |
+          if [ "${{ github.ref_type }}" = "tag" ]; then
+            echo "value=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_OUTPUT"
+          else
+            echo "value=dev" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Create multi-arch manifest
+        run: |
+          IMAGE="${DOCKERHUB_USERNAME}/${IMAGE_NAME}"
+          VERSION="${{ steps.version.outputs.value }}"
+          docker buildx imagetools create \
+            -t "${IMAGE}:${VERSION}" \
+            -t "${IMAGE}:latest" \
+            "${IMAGE}:${VERSION}-amd64" \
+            "${IMAGE}:${VERSION}-arm64"