feat(admin): 增加关于页与发布版本信息

- 在系统设置中新增“关于”标签页，提供版本、仓库、Issues、文档和开源协议入口。
- 通过 Docker 构建参数注入版本号与发布链接，并在前端展示当前发布版本。
- 调整 GitHub Actions 与镜像构建流程，仅在 tag 发布时构建并发布带版本标识的镜像。

.github/workflows/docker.yml

@@ -68,11 +68,33 @@ jobs:
         working-directory: apps/api
         run: go test ./...
 
+  release:
+    name: Resolve release tag
+    runs-on: ubuntu-latest
+    needs: checks
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
+    outputs:
+      tag: ${{ steps.release.outputs.tag }}
+      version: ${{ steps.release.outputs.version }}
+      release_url: ${{ steps.release.outputs.release_url }}
+    steps:
+      - name: Resolve tag version
+        id: release
+        shell: bash
+        run: |
+          tag="${GITHUB_REF_NAME}"
+          version="${tag#v}"
+          release_url="https://github.com/${GITHUB_REPOSITORY}/releases/tag/${tag}"
+          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
+          echo "version=${version}" >> "$GITHUB_OUTPUT"
+          echo "release_url=${release_url}" >> "$GITHUB_OUTPUT"
+          echo "::notice::Docker release tag: ${tag}"
+
   docker:
     name: Build and publish ${{ matrix.name }}
     runs-on: ubuntu-latest
-    needs: checks
-    if: github.event_name != 'pull_request'
+    needs: release
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     strategy:
       fail-fast: false
       matrix:
@@ -124,6 +146,8 @@ jobs:
         run: |
           image="${REGISTRY}/${GITHUB_REPOSITORY}${{ matrix.suffix }}"
           echo "name=${image,,}" >> "$GITHUB_OUTPUT"
+          echo "tag=${{ needs.release.outputs.tag }}" >> "$GITHUB_OUTPUT"
+          echo "version=${{ needs.release.outputs.version }}" >> "$GITHUB_OUTPUT"
 
       - name: Docker metadata
         id: meta
@@ -131,12 +155,13 @@ jobs:
         with:
           images: ${{ steps.image.outputs.name }}
           tags: |
-            type=raw,value=latest,enable={{is_default_branch}}
-            type=ref,event=branch
-            type=ref,event=tag
+            type=raw,value=${{ steps.image.outputs.tag }}
+            type=raw,value=${{ steps.image.outputs.version }}
+            type=raw,value=latest
             type=sha,prefix=sha-
           labels: |
             org.opencontainers.image.title=LanQin Email ${{ matrix.name }}
+            org.opencontainers.image.version=${{ steps.image.outputs.tag }}
 
       - name: Build and push
         uses: docker/build-push-action@v6
@@ -145,5 +170,8 @@ jobs:
           file: ${{ matrix.file }}
           platforms: ${{ env.PLATFORMS }}
           push: true
+          build-args: |
+            VITE_APP_VERSION=${{ needs.release.outputs.tag }}
+            VITE_RELEASE_URL=${{ needs.release.outputs.release_url }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}