fix: docker build

Update docker.yml

.github/workflows/docker.yml

@@ -44,7 +44,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Extract metadata
+      - name: Extract metadata (Standard)
         id: meta
         uses: docker/metadata-action@v5
         with:
@@ -57,6 +57,19 @@ jobs:
             type=semver,pattern={{major}},value=${{ steps.latest_tag.outputs.tag }}
             type=raw,value=latest
 
+      - name: Extract metadata (Legacy)
+        id: meta-legacy
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            xxnuo/mtranserver
+            ghcr.io/xxnuo/mtranserver
+          tags: |
+            type=semver,pattern={{version}},value=${{ steps.latest_tag.outputs.tag }},suffix=-legacy
+            type=semver,pattern={{major}}.{{minor}},value=${{ steps.latest_tag.outputs.tag }},suffix=-legacy
+            type=semver,pattern={{major}},value=${{ steps.latest_tag.outputs.tag }},suffix=-legacy
+            type=raw,value=legacy
+
       - name: Get version
         id: version
         run: |
@@ -67,20 +80,7 @@ jobs:
           fi
           echo "version=${VERSION}" >> $GITHUB_OUTPUT
 
-      - name: Setup Bun
-        uses: oven-sh/setup-bun@v1
-        with:
-          bun-version: latest
-
-      - name: Build UI
-        run: |
-          cd ui
-          bun install --frozen-lockfile
-          bun run build
-          echo "✓ UI build complete"
-          ls -lh dist/
-
-      - name: Build and push Docker image
+      - name: Build and push (Standard - AVX2)
         uses: docker/build-push-action@v5
         with:
           context: .
@@ -93,3 +93,18 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
           provenance: false
+
+      - name: Build and push (Legacy - No AVX2)
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta-legacy.outputs.tags }}
+          labels: ${{ steps.meta-legacy.outputs.labels }}
+          build-args: |
+            VERSION=${{ steps.version.outputs.version }}
+            BUILD_VARIANT=legacy
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          provenance: false