✨ feat(updater): 接入 GitHub Release 在线更新与关于信息展示

- 后端新增更新检查/下载/安装流程与应用信息接口
  - 关于弹窗展示版本/作者/仓库/Issue/Release，并内置检查更新
  - 构建/发布注入版本号并生成 SHA256SUMS
  - 顶部工具栏入口调整与新建查询补全默认空 SQL

.github/workflows/release.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Build
         shell: bash
         run: |
-          wails build -platform ${{ matrix.platform }} -clean -o ${{ matrix.artifact_name }}
+          wails build -platform ${{ matrix.platform }} -clean -o ${{ matrix.artifact_name }} -ldflags "-X GoNavi-Wails/internal/app.AppVersion=${{ github.ref_name }}"
 
       # macOS Packaging
       - name: Package macOS DMG
@@ -249,6 +249,11 @@ jobs:
       - name: List Assets
         run: ls -R release-assets
 
+      - name: Generate SHA256SUMS
+        run: |
+          cd release-assets
+          sha256sum * > SHA256SUMS
+
       - name: Create Release
         uses: softprops/action-gh-release@v2
         if: startsWith(github.ref, 'refs/tags/')