feat: 添加版本号显示和自动构建/删除 Docker 镜像功能

- 添加前端版本号显示（桌面端和移动端）
- 实现 GitHub Actions 自动构建和推送 Docker 镜像
- 实现删除 release 时自动删除对应 Docker 镜像
- 支持版本号格式：v数字.数字.数字 或 v数字.数字.数字-后缀
- 添加版本号管理文档
- 更新 Dockerfile 和部署脚本支持版本号构建参数

.github/workflows/docker-build.yml

@@ -0,0 +1,105 @@
+name: Build and Push Docker Image
+
+on:
+  release:
+    types:
+      - published  # 当通过 GitHub Releases 页面创建 release 时触发
+      - deleted     # 当删除 release 时触发
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        if: github.event.action == 'published'
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}  # 使用 release 对应的 tag
+      
+      # 构建和推送镜像（仅在发布 release 时）
+      - name: Extract version from release
+        if: github.event.action == 'published'
+        id: extract_version
+        run: |
+          # 从 release tag 中提取版本号（例如 v1.0.0 -> 1.0.0）
+          TAG_NAME="${{ github.event.release.tag_name }}"
+          if [ -z "$TAG_NAME" ]; then
+            TAG_NAME=${GITHUB_REF#refs/tags/}
+          fi
+          
+          # 验证版本号格式：v数字.数字.数字[-后缀]（例如 v1.0.0, v2.10.102, v1.0.0-beta）
+          if [[ ! "$TAG_NAME" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.-]+)?$ ]]; then
+            echo "错误: 版本号格式不正确，应为 v数字.数字.数字 或 v数字.数字.数字-后缀 (例如: v1.0.0, v1.0.0-beta)"
+            exit 1
+          fi
+          
+          VERSION=${TAG_NAME#v}  # 移除 v 前缀
+          echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
+          echo "TAG=$TAG_NAME" >> $GITHUB_OUTPUT
+          echo "Extracted version: $VERSION"
+          echo "Full tag: $TAG_NAME"
+      
+      - name: Set up Docker Buildx
+        if: github.event.action == 'published'
+        uses: docker/setup-buildx-action@v3
+      
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      
+      - name: Build and push Docker image
+        if: github.event.action == 'published'
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            wrbug/polyhermes:${{ steps.extract_version.outputs.TAG }}
+            wrbug/polyhermes:latest
+          build-args: |
+            VERSION=${{ steps.extract_version.outputs.VERSION }}
+            GIT_TAG=${{ steps.extract_version.outputs.TAG }}
+            GITHUB_REPO_URL=https://github.com/WrBug/PolyHermes
+          cache-from: type=registry,ref=wrbug/polyhermes:latest
+          cache-to: type=inline
+      
+      # 删除镜像（仅在删除 release 时）
+      - name: Delete Docker image (when release is deleted)
+        if: github.event.action == 'deleted'
+        run: |
+          TAG_NAME="${{ github.event.release.tag_name }}"
+          
+          # 验证版本号格式：v数字.数字.数字[-后缀]（精准匹配）
+          if [[ ! "$TAG_NAME" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.-]+)?$ ]]; then
+            echo "警告: 版本号格式不正确 ($TAG_NAME)，应为 v数字.数字.数字 或 v数字.数字.数字-后缀 (例如: v1.0.0, v1.0.0-beta)"
+            echo "跳过删除操作"
+            exit 0
+          fi
+          
+          IMAGE_NAME="wrbug/polyhermes"
+          DOCKER_USERNAME="${{ secrets.DOCKER_USERNAME }}"
+          DOCKER_PASSWORD="${{ secrets.DOCKER_PASSWORD }}"
+          
+          echo "正在删除 Docker 镜像: ${IMAGE_NAME}:${TAG_NAME}"
+          
+          # 使用 Docker Hub API v2 删除镜像标签
+          RESPONSE=$(curl -s -w "\n%{http_code}" -X DELETE \
+            -u "${DOCKER_USERNAME}:${DOCKER_PASSWORD}" \
+            "https://hub.docker.com/v2/repositories/${IMAGE_NAME}/tags/${TAG_NAME}/")
+          
+          HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
+          BODY=$(echo "$RESPONSE" | head -n-1)
+          
+          if [ "$HTTP_CODE" = "204" ]; then
+            echo "✅ 成功删除 Docker 镜像标签: ${IMAGE_NAME}:${TAG_NAME}"
+          elif [ "$HTTP_CODE" = "404" ]; then
+            echo "⚠️  镜像标签不存在: ${IMAGE_NAME}:${TAG_NAME}，可能已被删除或不存在"
+          else
+            echo "❌ 删除失败 (HTTP $HTTP_CODE): $BODY"
+            exit 1
+          fi
+