refactor: Simplify CodexLens rotation UI, link to API Settings

- Simplify rotation section to show status only
- Add link to navigate to API Settings Embedding Pool
- Update loadRotationStatus to read from embedding-pool API
- Remove detailed modal in favor of API Settings config
- Add i18n translations for 'Configure in API Settings'

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ccw/src/templates/dashboard-js/i18n.js

@@ -291,6 +291,7 @@ const i18n = {
     'codexlens.useAllKeys': 'Use All Keys',
     'codexlens.selectKeys': 'Select Keys',
     'codexlens.configureRotation': 'Configure Rotation',
+    'codexlens.configureInApiSettings': 'Configure in API Settings',
     'codexlens.rotationSaved': 'Rotation config saved successfully',
     'codexlens.endpointsSynced': 'endpoints synced to CodexLens',
     'codexlens.syncFailed': 'Sync failed',
@@ -1997,6 +1998,7 @@ const i18n = {
     'codexlens.useAllKeys': '使用所有密钥',
     'codexlens.selectKeys': '选择密钥',
     'codexlens.configureRotation': '配置轮训',
+    'codexlens.configureInApiSettings': '在 API 设置中配置',
     'codexlens.rotationSaved': '轮训配置保存成功',
     'codexlens.endpointsSynced': '个端点已同步到 CodexLens',
     'codexlens.syncFailed': '同步失败',