添加 AGC 客户端更新检查与下载能力 (#230)

实现 AGC 启动版本检测与 OSS 安装包下载。

- 每次客户端打开时从 OSS latest.json 检查新版本
- 新版本提示支持 releaseNotes，并通过 Tauri 命令下载到系统下载目录
- 下载地址限制受信任 OSS、HTTPS、大小与可选 SHA-256 校验
- 补充 Tauri capability/CSP、单测和发布文档

Closes #224

Reviewed-on: http://192.168.35.82/git/GenarrativeAI/Genarrative/pulls/230

scripts/check-npm-workspaces.mjs

@@ -173,12 +173,14 @@ export function collectNpmWorkspaceErrors(rootDir) {
         `${manifestPath}: name must be ${WORKSPACE_NAMES[workspacePath]}, received ${String(manifest.name)}`,
       );
     }
-    const expectedWorkspaceVersion =
-      workspacePath === 'apps/ai-game-creator-shell' ? '0.1.12' : '0.1.0';
-    if (manifest.version !== expectedWorkspaceVersion) {
-      errors.push(
-        `${manifestPath}: workspace version must be ${expectedWorkspaceVersion}`,
-      );
+    if (workspacePath === 'apps/ai-game-creator-shell') {
+      if (!/^\d+\.\d+\.\d+$/u.test(manifest.version ?? '')) {
+        errors.push(
+          `${manifestPath}: workspace version must be a three-part semver`,
+        );
+      }
+    } else if (manifest.version !== '0.1.0') {
+      errors.push(`${manifestPath}: workspace version must be 0.1.0`);
     }
 
     for (const nestedLockfile of findNestedLockfiles(rootDir, workspacePath)) {