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/bump-version.mjs

@@ -0,0 +1,153 @@
+// ============================================================
+// bump-version.mjs — 版本号管理与 CHANGELOG 模板生成
+//
+// 用法：
+//   node build/scripts/bump-version.mjs <major|minor|patch> [--no-changelog]
+//   node build/scripts/bump-version.mjs set <x.y.z>
+//   node build/scripts/bump-version.mjs pre <beta|alpha>
+//
+// 示例：
+//   node build/scripts/bump-version.mjs patch          # 0.0.28 → 0.0.29
+//   node build/scripts/bump-version.mjs minor          # 0.0.28 → 0.1.0
+//   node build/scripts/bump-version.mjs set 1.0.0      # 直接设置版本
+//   node build/scripts/bump-version.mjs pre beta       # 0.0.29 → 0.0.29-beta.1
+// ============================================================
+
+import { readFileSync, writeFileSync } from 'node:fs';
+import { join, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const ROOT = join(__dirname, '..', '..');
+
+const args = process.argv.slice(2);
+const command = args[0];
+const arg1 = args[1];
+const noChangelog = args.includes('--no-changelog');
+
+if (!command) {
+  console.error('用法: node build/scripts/bump-version.mjs <major|minor|patch|set|pre> [value]');
+  console.error('示例: node build/scripts/bump-version.mjs patch');
+  console.error('      node build/scripts/bump-version.mjs set 1.0.0');
+  console.error('      node build/scripts/bump-version.mjs pre beta');
+  process.exit(1);
+}
+
+const pkgPath = join(ROOT, 'package.json');
+const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'));
+const oldVersion = pkg.version;
+
+// ---------- 版本计算 ----------
+
+function parseSemver(v) {
+  const match = v.match(/^(\d+)\.(\d+)\.(\d+)(?:-(.+))?$/);
+  if (!match) throw new Error(`无效的版本号格式: ${v}`);
+  return {
+    major: parseInt(match[1]),
+    minor: parseInt(match[2]),
+    patch: parseInt(match[3]),
+    pre: match[4] || null,
+  };
+}
+
+let newVersion;
+
+switch (command) {
+  case 'major':
+  case 'minor':
+  case 'patch': {
+    const sv = parseSemver(oldVersion);
+    if (command === 'major') {
+      sv.major++;
+      sv.minor = 0;
+      sv.patch = 0;
+    } else if (command === 'minor') {
+      sv.minor++;
+      sv.patch = 0;
+    } else {
+      sv.patch++;
+    }
+    sv.pre = null;
+    newVersion = `${sv.major}.${sv.minor}.${sv.patch}`;
+    break;
+  }
+
+  case 'set': {
+    if (!arg1) {
+      console.error('用法: node build/scripts/bump-version.mjs set <x.y.z>');
+      process.exit(1);
+    }
+    // 基本格式校验
+    if (!/^\d+\.\d+\.\d+(-.+)?$/.test(arg1)) {
+      console.error(`无效的版本号: ${arg1}`);
+      process.exit(1);
+    }
+    newVersion = arg1;
+    break;
+  }
+
+  case 'pre': {
+    if (!arg1 || !['beta', 'alpha'].includes(arg1)) {
+      console.error('用法: node build/scripts/bump-version.mjs pre <beta|alpha>');
+      process.exit(1);
+    }
+    const sv = parseSemver(oldVersion);
+
+    // 如果当前版本已有预发布后缀，递增进位号
+    if (sv.pre) {
+      const match = sv.pre.match(new RegExp(`^${arg1}\\.(\\d+)$`));
+      if (match) {
+        const num = parseInt(match[1]) + 1;
+        newVersion = `${sv.major}.${sv.minor}.${sv.patch}-${arg1}.${num}`;
+      } else {
+        // 不同预发布类型，重新开始
+        newVersion = `${sv.major}.${sv.minor}.${sv.patch}-${arg1}.1`;
+      }
+    } else {
+      // 纯 semver → 首次预发布：自动升 patch 再加后缀
+      sv.patch++;
+      newVersion = `${sv.major}.${sv.minor}.${sv.patch}-${arg1}.1`;
+    }
+    break;
+  }
+
+  default:
+    console.error(`未知命令: ${command}。支持: major | minor | patch | set <ver> | pre <beta|alpha>`);
+    process.exit(1);
+}
+
+// ---------- 更新 package.json ----------
+
+pkg.version = newVersion;
+writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + '\n', 'utf-8');
+console.log(`✅ package.json: ${oldVersion} → ${newVersion}`);
+
+// ---------- 更新 shared/constants/version.ts（由 import pkg 动态读取，无需修改） ----------
+console.log('   shared/constants/version.ts 自动读取 package.json，无需手动同步');
+
+// ---------- 更新 CHANGELOG.md ----------
+
+if (!noChangelog) {
+  const changelogPath = join(ROOT, 'CHANGELOG.md');
+  try {
+    let changelog = readFileSync(changelogPath, 'utf-8');
+
+    const today = new Date().toISOString().slice(0, 10);
+    const entry = `## ${newVersion}（${today}）\n\n**更新内容待补充**\n\n---\n\n`;
+
+    // 在第一个 ## 之前插入新版本条目
+    const firstHeaderMatch = changelog.match(/^##\s/m);
+    if (firstHeaderMatch) {
+      const insertAt = firstHeaderMatch.index;
+      changelog = changelog.slice(0, insertAt) + entry + changelog.slice(insertAt);
+      writeFileSync(changelogPath, changelog, 'utf-8');
+      console.log(`✅ CHANGELOG.md: 已添加 v${newVersion} 模板条目`);
+    } else {
+      console.warn('⚠️  CHANGELOG.md 格式异常，未找到 ## 版本标题');
+    }
+  } catch {
+    console.warn('⚠️  CHANGELOG.md 不存在，跳过更新');
+  }
+}
+
+console.log(`\n版本已更新: ${oldVersion} → ${newVersion}`);