diff --git a/apps/web/src/components/incident/dual-state-incident-card.tsx b/apps/web/src/components/incident/dual-state-incident-card.tsx
index 2a2450b3..26854139 100644
--- a/apps/web/src/components/incident/dual-state-incident-card.tsx
+++ b/apps/web/src/components/incident/dual-state-incident-card.tsx
@@ -141,13 +141,17 @@ export const DualStateIncidentCard: React.FC<DualStateIncidentCardProps> = ({
         timeoutRef.current = null
       }
 
-      if (result.status === 'approved' || result.status === 'APPROVED') {
+      // 🔧 Fix: 正確檢查 result.approval.status (非 result.status)
+      const approvalStatus = result.approval?.status?.toLowerCase()
+      if (approvalStatus === 'approved') {
         setButtonState('approved')
         console.log('🎯 授權成功，觸發 onApprovalChange')
         onApprovalChange?.(approvalId, 'approved')
       } else {
         // Multi-sig: 還需要更多簽核
-        console.log('🔐 Multi-sig 等待中，目前簽核:', result.current_signatures, '/', result.required_signatures)
+        const current = result.approval?.current_signatures ?? result.current_signatures ?? 0
+        const required = result.approval?.required_signatures ?? result.required_signatures ?? 1
+        console.log('🔐 Multi-sig 等待中，目前簽核:', current, '/', required)
         setButtonState('idle')
       }
     } catch (error) {
diff --git a/apps/web/src/lib/api-client.ts b/apps/web/src/lib/api-client.ts
index 817994a0..5305b41b 100644
--- a/apps/web/src/lib/api-client.ts
+++ b/apps/web/src/lib/api-client.ts
@@ -124,12 +124,17 @@ export const apiClient = {
         comment: comment,
       }),
     })
+    // 🔧 Fix: 回傳型別與後端實際結構對齊
     return handleResponse<{
-      approval_id: string
-      status: string
-      current_signatures: number
-      required_signatures: number
+      success: boolean
       message: string
+      approval: ApprovalResponse
+      execution_triggered: boolean
+      // 向下相容舊欄位 (deprecated)
+      approval_id?: string
+      status?: string
+      current_signatures?: number
+      required_signatures?: number
     }>(res)
   },