feat: 版本号按分支轨道分开管理，版本号配置收归管理员

master/develop 共用 release 轨（App_Store 打包构建号自增），feature 分支走
feature 轨（构建号永不自增，始终使用手填值），两条轨道的 App_Ver 各自独立。

- versions 改为 tracks 结构，旧的单轨/单值配置在加载时自动迁移进 release 轨
- 新增 config["branch_track"] 记录分支归属，缺省按分支名推断，可在分支管理页改
- 新增 PUT /api/config/branches/track；分支名含 / 时走请求体而非路径参数
- 修复 DELETE /api/config/branches/{name} 无法删除含 / 的分支（405）
- 版本号接口不再对普通用户开放，打包设置页整页改为管理员可见

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

frontend/src/__tests__/ConfigView.test.js

@@ -24,7 +24,15 @@ function mockFetch(url) {
     '/api/config/servers': { '测试环境': { api: 'https://test.com', assDom: '', universalLink: '' } },
     '/api/config/branches': ['main', 'dev'],
     '/api/config/build': { max_concurrent_builds: 2, build_dir_retention_hours: 24, build_base_dir: '/tmp' },
-    '/api/config/versions': { app_ver: '2.195.0', build_ver: '2.195.0.0' },
+    '/api/config/versions': {
+      app_ver: '2.195.0',
+      build_ver: '2.195.0.0',
+      tracks: {
+        release: { app_ver: '2.195.0', build_ver: '2.195.0.0', build_map: {} },
+        feature: { app_ver: '2.100.0', build_ver: '2.100.0.0', build_map: {} },
+      },
+      branch_track: { main: 'release', dev: 'release' },
+    },
     '/api/config': { apps: {}, schemes: {}, branches: ['main'] },
   }
   return Promise.resolve({
@@ -168,20 +176,76 @@ describe('ConfigView.vue', () => {
     expect(window.alert).toHaveBeenCalledWith('设置已保存')
   })
 
-  it('普通账号可修改版本号但看不到打包参数', async () => {
+  it('普通账号只能管理 Apps，看不到打包设置与版本号', async () => {
     const wrapper = mountConfigView({ admin: false })
     await flushPromises()
 
     const menuTexts = wrapper.findAll('.sidebar-menu li').map(li => li.text())
-    expect(menuTexts).toEqual(['Apps 配置', '打包设置'])
+    expect(menuTexts).toEqual(['Apps 配置'])
+
+    expect(wrapper.text()).not.toContain('上架版本号')
+    expect(wrapper.text()).not.toContain('自测版本号')
+    expect(wrapper.text()).not.toContain('打包参数')
+    // 版本号接口为管理员专属，普通账号不再请求
+    expect(fetch).not.toHaveBeenCalledWith('/api/config/versions', expect.anything())
+    expect(fetch.mock.calls.map(c => c[0])).toEqual(['/api/config/apps'])
+  })
+
+  it('两条版本轨道各自独立展示与保存', async () => {
+    const calls = []
+    fetch.mockImplementation((url, opts) => {
+      if (url === '/api/config/versions' && opts?.method === 'PUT') {
+        calls.push(JSON.parse(opts.body))
+        return Promise.resolve({
+          ok: true,
+          json: () => Promise.resolve({ app_ver: '2.101.0', build_ver: '2.101.0.0' }),
+        })
+      }
+      return mockFetch(url)
+    })
+    window.alert = vi.fn()
+
+    const wrapper = mountConfigView()
+    await flushPromises()
 
     const buildMenu = wrapper.findAll('.sidebar-menu li').find(li => li.text() === '打包设置')
     await buildMenu.trigger('click')
     await wrapper.vm.$nextTick()
 
-    expect(wrapper.text()).toContain('应用版本号')
-    expect(wrapper.text()).not.toContain('打包参数')
-    // 非管理员在打包设置页可见 App_Ver 与 Build_Ver 两个输入框
-    expect(wrapper.findAll('input').length).toBe(2)
+    const inputs = wrapper.findAll('input[type="text"]')
+    expect(inputs[0].element.value).toBe('2.195.0')  // release App_Ver
+    expect(inputs[2].element.value).toBe('2.100.0')  // feature App_Ver
+
+    await inputs[2].setValue('2.101.0')
+    const saveBtn = wrapper.findAll('.btn-primary').find(b => b.text() === '保存自测版本号')
+    await saveBtn.trigger('click')
+    await flushPromises()
+
+    expect(calls).toEqual([{ track: 'feature', app_ver: '2.101.0', build_ver: '2.101.0.0' }])
+  })
+
+  it('分支管理可切换版本轨道', async () => {
+    const calls = []
+    fetch.mockImplementation((url, opts) => {
+      if (url === '/api/config/branches/track' && opts?.method === 'PUT') {
+        calls.push(JSON.parse(opts.body))
+        return Promise.resolve({ ok: true, json: () => Promise.resolve({ message: 'ok' }) })
+      }
+      return mockFetch(url)
+    })
+
+    const wrapper = mountConfigView()
+    await flushPromises()
+
+    const branchesMenu = wrapper.findAll('.sidebar-menu li').find(li => li.text() === '分支管理')
+    await branchesMenu.trigger('click')
+    await wrapper.vm.$nextTick()
+
+    const select = wrapper.find('.config-table select')
+    expect(select.element.value).toBe('release')
+    await select.setValue('feature')
+    await flushPromises()
+
+    expect(calls).toEqual([{ branch: 'main', track: 'feature' }])
   })
 })