diff --git a/.github/workflows/cd.yaml b/.github/workflows/cd.yaml
index 058b29b5..434ec3aa 100644
--- a/.github/workflows/cd.yaml
+++ b/.github/workflows/cd.yaml
@@ -185,9 +185,7 @@ jobs:
         run: |
           docker build --push \
             --build-arg NEXT_PUBLIC_API_URL=https://awoooi.wooo.work \
-            # 暫時停用前端 Sentry (會觸發區域網路權限對話框)
-            # TODO: 實作 Sentry Tunnel 後再啟用
-            # --build-arg NEXT_PUBLIC_SENTRY_DSN=http://da02d4e5d6542e4d1ed6b2dd6542efeb@192.168.0.110:9000/2 \
+            --build-arg NEXT_PUBLIC_SENTRY_DSN=http://da02d4e5d6542e4d1ed6b2dd6542efeb@192.168.0.110:9000/2 \
             --tag ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-web:${{ steps.tag.outputs.tag }} \
             --file apps/web/Dockerfile .
           echo "✅ Web: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-web:${{ steps.tag.outputs.tag }}"
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b9369735..5ade6ee3 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -148,9 +148,8 @@ jobs:
       - name: Build packages
         env:
           NEXT_PUBLIC_API_URL: https://awoooi.wooo.work
-          # 暫時停用前端 Sentry (會觸發區域網路權限對話框)
-          # TODO: 實作 Sentry Tunnel 後再啟用
-          # NEXT_PUBLIC_SENTRY_DSN: http://da02d4e5d6542e4d1ed6b2dd6542efeb@192.168.0.110:9000/2
+          # Sentry DSN (透過 /api/sentry-tunnel 避免區域網路權限問題)
+          NEXT_PUBLIC_SENTRY_DSN: http://da02d4e5d6542e4d1ed6b2dd6542efeb@192.168.0.110:9000/2
         run: pnpm turbo build
 
       - name: Upload build artifacts
diff --git a/apps/web/sentry.client.config.ts b/apps/web/sentry.client.config.ts
index bbbca4e1..c8e02985 100644
--- a/apps/web/sentry.client.config.ts
+++ b/apps/web/sentry.client.config.ts
@@ -14,6 +14,11 @@ if (process.env.NEXT_PUBLIC_SENTRY_DSN) {
   Sentry.init({
     dsn: process.env.NEXT_PUBLIC_SENTRY_DSN,
 
+    // Sentry Tunnel: 避免區域網路權限對話框
+    // @see apps/web/src/app/api/sentry-tunnel/route.ts
+    // @see feedback_sentry_local_network.md
+    tunnel: '/api/sentry-tunnel',
+
     // 環境標識
     environment: process.env.NODE_ENV,
 
diff --git a/apps/web/src/app/api/sentry-tunnel/route.ts b/apps/web/src/app/api/sentry-tunnel/route.ts
new file mode 100644
index 00000000..6e0d41c8
--- /dev/null
+++ b/apps/web/src/app/api/sentry-tunnel/route.ts
@@ -0,0 +1,86 @@
+/**
+ * Sentry Tunnel API Route
+ * =======================
+ *
+ * 解決問題: 前端 Sentry DSN 使用內網 IP (192.168.0.110:9000) 會觸發
+ * 瀏覽器「存取區域網路上的其他裝置」權限對話框。
+ *
+ * 解決方案: 使用 Next.js API Route 作為 Tunnel，前端透過公網域名
+ * (/api/sentry-tunnel) 發送事件，後端再轉發到內網 Sentry Server。
+ *
+ * 參考: https://docs.sentry.io/platforms/javascript/troubleshooting/#dealing-with-ad-blockers
+ *
+ * @see feedback_sentry_local_network.md
+ * @see project_sentry_full_integration.md
+ */
+
+import { NextRequest, NextResponse } from 'next/server';
+
+// Sentry Self-Hosted 內網地址
+const SENTRY_HOST = 'http://192.168.0.110:9000';
+
+// 允許的 Project IDs (防止濫用)
+const ALLOWED_PROJECT_IDS = new Set(['2', '3']); // awoooi-web: 2, awoooi-api: 3
+
+export async function POST(request: NextRequest) {
+  try {
+    const envelope = await request.text();
+
+    // 解析 envelope 取得 DSN 資訊
+    const [header] = envelope.split('\n');
+    const headerObj = JSON.parse(header);
+    const dsn = headerObj.dsn;
+
+    if (!dsn) {
+      return NextResponse.json(
+        { error: 'Missing DSN in envelope header' },
+        { status: 400 }
+      );
+    }
+
+    // 從 DSN 解析 Project ID
+    // DSN 格式: http://<key>@<host>:<port>/<project_id>
+    const projectId = dsn.split('/').pop();
+
+    if (!projectId || !ALLOWED_PROJECT_IDS.has(projectId)) {
+      return NextResponse.json(
+        { error: 'Invalid or unauthorized project ID' },
+        { status: 403 }
+      );
+    }
+
+    // 轉發到 Sentry Server
+    const response = await fetch(`${SENTRY_HOST}/api/${projectId}/envelope/`, {
+      method: 'POST',
+      body: envelope,
+      headers: {
+        'Content-Type': 'application/x-sentry-envelope',
+      },
+    });
+
+    if (!response.ok) {
+      console.error('[Sentry Tunnel] Forward failed:', response.status, response.statusText);
+      return NextResponse.json(
+        { error: 'Failed to forward to Sentry' },
+        { status: response.status }
+      );
+    }
+
+    return new NextResponse(null, { status: 200 });
+  } catch (error) {
+    console.error('[Sentry Tunnel] Error:', error);
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    );
+  }
+}
+
+// 健康檢查端點
+export async function GET() {
+  return NextResponse.json({
+    status: 'ok',
+    tunnel: '/api/sentry-tunnel',
+    target: SENTRY_HOST,
+  });
+}