feat: 构建系统重构 + VCHSM 架构迁移 + 右键菜单修复 + 尺寸参数统一

## 构建、打包与分发系统重构 (build/)

- 构建系统收敛至 build/ 目录：build.mjs + electron-builder.js + 6 个脚本

- electron-builder 配置从 package.json 提取为 build/electron-builder.js

- 新增 --edition (personal/enterprise) 和 --channel (stable/beta/alpha) 参数

- OSS 路径按渠道隔离

- 新增 pre-build-check.mjs：Git/CHANGELOG/版本/环境变量校验

- 新增 bump-version.mjs：版本号管理 + CHANGELOG 自动生成

- updater.ts 发送 channel/edition/deviceFingerprint

- 新增 src/shared/utils/rollout.ts 灰度测试工具

- 新增 10 条 NPM 脚本

## VCHSM 五层架构迁移

- 7 个业务模块 + ~500 处导入路径同步

## 修复

- MediaCardContextMenu 改用共享 ContextMenu 组件

- ComboBox 尺寸参数显示统一 (size-format.ts)

## 文档

- UpdateA.md / build/README.md / README.md / .env.example 更新

Co-Authored-By: Claude <noreply@anthropic.com>

build/scripts/publish-release.mjs

@@ -0,0 +1,149 @@
+// ============================================================
+// 发布版本信息到后端 API
+//
+// 用法（由 build.mjs 调用）：
+//   node build/scripts/publish-release.mjs <platform> <version> <channel> <edition> <ossPrefix> <releaseDirName>
+//
+// 也支持手动调用：
+//   node build/scripts/publish-release.mjs <platform> <version> [channel] [edition] [ossPrefix] [--url <url>] [--json <json>]
+//
+// 环境变量：
+//   UPDATE_API_URL   — API 基地址（默认 https://www.heixiu.com）
+//   UPDATE_API_KEY   — API 鉴权 Key（通过 Authorization: Bearer 头传递）
+// ============================================================
+
+import { readFileSync, readdirSync } from 'node:fs';
+import { join, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import axios from 'axios';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const ROOT = join(__dirname, '..', '..');
+
+// ---------- 参数 ----------
+
+const args = process.argv.slice(2);
+const positional = [];
+let urlOverride = '';
+let jsonOverride = '';
+
+for (let i = 0; i < args.length; i++) {
+  if (args[i] === '--url' && args[i + 1]) {
+    urlOverride = args[++i];
+  } else if (args[i] === '--json' && args[i + 1]) {
+    jsonOverride = args[++i];
+  } else if (!args[i].startsWith('--')) {
+    positional.push(args[i]);
+  }
+}
+
+const platform = positional[0];
+const version = positional[1];
+const channel = positional[2] || 'stable';
+const edition = positional[3] || 'personal';
+const ossPrefix = positional[4] || `releases/${version}`;
+const releaseDirName = positional[5] || version;
+
+if (!platform || !version) {
+  console.error('用法: node build/scripts/publish-release.mjs <platform> <version> [channel] [edition] [ossPrefix] [releaseDirName]');
+  process.exit(1);
+}
+
+// ---------- 读取 update-info.json ----------
+
+let updateInfo;
+
+if (jsonOverride) {
+  try {
+    updateInfo = JSON.parse(jsonOverride);
+  } catch {
+    console.error('错误: --json 参数不是有效的 JSON');
+    process.exit(1);
+  }
+} else {
+  const releaseDir = join(ROOT, 'release', releaseDirName);
+  let infoFile;
+  try {
+    const all = readdirSync(releaseDir);
+    infoFile = all.find((f) =>
+      f.includes(platform) && f.endsWith('-update-info.json'),
+    );
+    if (!infoFile) {
+      console.error(`未找到 ${platform} 的 update-info.json（在 ${releaseDir} 中）`);
+      process.exit(1);
+    }
+  } catch (err) {
+    console.error(`错误: ${releaseDir} — ${err.message}`);
+    process.exit(1);
+  }
+  updateInfo = JSON.parse(readFileSync(join(releaseDir, infoFile), 'utf-8'));
+  if (urlOverride) updateInfo.downloadUrl = urlOverride;
+}
+
+// ---------- 发送到 API ----------
+
+const apiBase = (process.env.UPDATE_API_URL || 'https://www.heixiu.com').replace(/\/+$/, '');
+const apiKey = process.env.UPDATE_API_KEY || '';
+
+const payload = {
+  platform,
+  channel,
+  edition,
+  latestVersion: updateInfo.latestVersion || version,
+  downloadUrl: updateInfo.downloadUrl,
+  fileSize: updateInfo.fileSize,
+  sha512: updateInfo.sha512,
+  changelog: updateInfo.changelog,
+  releaseDate: updateInfo.releaseDate,
+  forceUpdate: updateInfo.forceUpdate || false,
+  minimumVersion: updateInfo.minimumVersion || '0.0.0',
+  // 增量更新
+  ...(updateInfo.blockMapUrl && { blockMapUrl: updateInfo.blockMapUrl }),
+  ...(updateInfo.blockMapSize != null && { blockMapSize: updateInfo.blockMapSize }),
+  // 元数据
+  _meta: {
+    ossPrefix,
+    releaseDirName,
+    publishedAt: new Date().toISOString(),
+  },
+};
+
+const endpoint = `${apiBase}/api/v1/releases`;
+
+console.log('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━');
+console.log('📡 发布版本到 API');
+console.log('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━');
+console.log(`POST ${endpoint}`);
+console.log(`版本: ${version}`);
+console.log(`平台: ${platform}`);
+console.log(`渠道: ${channel}`);
+console.log(`版本类型: ${edition}`);
+console.log(`URL: ${payload.downloadUrl}\n`);
+
+try {
+  const response = await axios.post(endpoint, payload, {
+    headers: {
+      'Content-Type': 'application/json',
+      ...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {}),
+    },
+    timeout: 30000,
+  });
+
+  console.log('✅ 发布成功');
+  console.log(`响应: ${JSON.stringify(response.data, null, 2)}`);
+} catch (err) {
+  const status = err.response?.status;
+  const data = err.response?.data;
+
+  if (status) {
+    console.error(`❌ 发布失败 HTTP ${status}: ${JSON.stringify(data)}`);
+  } else {
+    console.error(`❌ 请求失败: ${err.message}`);
+  }
+
+  console.log('\n💡 手动备选 — 把以下 JSON 发给后端：');
+  console.log(JSON.stringify(payload, null, 2));
+  process.exit(1);
+}
+
+console.log('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━');