fix(web): use runtime origin for public api calls

apps/web/src/components/layout/app-layout.tsx

@@ -20,6 +20,7 @@ import { Sidebar } from './sidebar'
 import { Header } from './header'
 import { DotMatrixBg } from '@/components/ui/dot-matrix-bg'
 import { Z_INDEX } from '@/lib/constants/z-index'
+import { getRuntimeApiBaseUrl } from '@/lib/runtime-api-base'
 import { cn } from '@/lib/utils'
 import { useDashboardStore } from '@/stores/dashboard.store'
 
@@ -92,7 +93,7 @@ export function AppLayout({
 
   // Phase 19 修復: 全局啟動 SSE 連接 (所有頁面共享)
   useEffect(() => {
-    const apiBaseUrl = process.env.NEXT_PUBLIC_API_URL || ''
+    const apiBaseUrl = getRuntimeApiBaseUrl()
     if (apiBaseUrl) {
       console.log('[AppLayout] 全局 SSE 連接啟動...', apiBaseUrl)
       connect(apiBaseUrl)