refactor: 只保留 Web，移除 Capacitor 原生壳

删除 android/、ios/ 两个 Capacitor 原生工程与 capacitor.config.ts、
ionic.config.json，以及 scripts/android、scripts/ios.sh 构建脚本；
根与 apps/web 的 @capacitor/* 依赖和相关 npm scripts 一并移除。

Web 侧去掉原生分支：登录只走云乐坊容器授权面板或顶层重定向，
暗色模式不再改原生状态栏，移除 Android 物理返回键处理。

保留 @nuxtjs/ionic（Web UI 框架）、云乐坊 window.ylf 桥接与 PWA。

决策记录见 docs/decisions/0004-web-only.md。

test/yunlefunSsoConfig.test.ts

@@ -5,8 +5,6 @@ const validConfig = {
   clientId: 'cook-web',
   cloudbaseEnv: 'yunlefun-8g7ybcxc7345c490',
   exchangeUrl: 'https://api.yunle.fun/sso-ticket',
-  nativeClientId: 'cook-mobile',
-  nativeRedirectUri: 'https://cook.yunyoujun.cn/auth/callback?platform=native',
   redirectUri: 'https://cook.yunyoujun.cn/auth/callback',
   redirectUris: 'https://cook.yunyoujun.cn/auth/callback,https://cook.yunle.fun/auth/callback',
   scope: 'identity:bootstrap',
@@ -17,7 +15,6 @@ describe('resolveYunlefunSsoConfig', () => {
   it('accepts the exact registered production web origin', () => {
     expect(resolveYunlefunSsoConfig(validConfig, {
       currentOrigin: 'https://cook.yunyoujun.cn',
-      platform: 'web',
     })).toEqual({
       ok: true,
       config: {
@@ -38,7 +35,6 @@ describe('resolveYunlefunSsoConfig', () => {
   it('selects the registered callback for the current production web origin', () => {
     expect(resolveYunlefunSsoConfig(validConfig, {
       currentOrigin: 'https://cook.yunle.fun',
-      platform: 'web',
     })).toMatchObject({
       ok: true,
       config: {
@@ -53,7 +49,6 @@ describe('resolveYunlefunSsoConfig', () => {
   it('fails closed on an unregistered HTTP development origin', () => {
     expect(resolveYunlefunSsoConfig(validConfig, {
       currentOrigin: 'http://127.0.0.1:4173',
-      platform: 'web',
     })).toEqual({
       ok: false,
       message: '当前域名尚未登记为登录回跳地址',
@@ -63,27 +58,9 @@ describe('resolveYunlefunSsoConfig', () => {
   it('fails closed on an unregistered HTTPS origin', () => {
     expect(resolveYunlefunSsoConfig(validConfig, {
       currentOrigin: 'https://cook.example.com',
-      platform: 'web',
     })).toEqual({
       ok: false,
       message: '当前域名尚未登记为登录回跳地址',
     })
   })
-
-  it('uses only the registered HTTPS callback in a native container', () => {
-    const result = resolveYunlefunSsoConfig(validConfig, {
-      currentOrigin: 'capacitor://localhost',
-      platform: 'native',
-    })
-
-    expect(result).toMatchObject({
-      ok: true,
-      config: {
-        redirect: {
-          clientId: 'cook-mobile',
-          redirectUri: 'https://cook.yunyoujun.cn/auth/callback?platform=native',
-        },
-      },
-    })
-  })
 })