收口原生壳请求超时边界

将原生壳请求默认超时和最大超时提升到共享 HostBridge 契约

让 H5 nativeAppHostBridge 复用共享超时边界

增加原生壳门禁拦截本地超时边界重声明

补充原生壳方案和共享决策记录

scripts/check-native-shells.mjs

@@ -1011,6 +1011,35 @@ function assertH5HostBridgePayloadBoundaries() {
   }
 }
 
+function assertH5NativeAppTransportTimeoutBoundaries() {
+  const nativeAppHostBridgeSource = fs.readFileSync(
+    'src/services/host-bridge/nativeAppHostBridge.ts',
+    'utf8',
+  );
+
+  for (const sharedBoundary of [
+    'HOST_BRIDGE_DEFAULT_REQUEST_TIMEOUT_MS',
+    'HOST_BRIDGE_MAX_REQUEST_TIMEOUT_MS',
+  ]) {
+    if (!nativeAppHostBridgeSource.includes(`${sharedBoundary},`)) {
+      throw new Error(
+        `H5 native app transport must import shared timeout boundary ${sharedBoundary}`,
+      );
+    }
+  }
+
+  for (const staleTimeoutBoundary of [
+    'DEFAULT_NATIVE_APP_BRIDGE_TIMEOUT_MS',
+    'MAX_NATIVE_APP_BRIDGE_TIMEOUT_MS',
+  ]) {
+    if (nativeAppHostBridgeSource.includes(staleTimeoutBoundary)) {
+      throw new Error(
+        `H5 native app transport must not redeclare timeout boundary ${staleTimeoutBoundary}`,
+      );
+    }
+  }
+}
+
 function extractDocumentCapabilityList(source, marker) {
   const markerIndex = source.indexOf(marker);
   if (markerIndex === -1) {
@@ -1662,6 +1691,9 @@ assertH5HostBridgeEventSubscriptionGates();
 console.log('[check:native-shells] h5-host-bridge-payload-boundaries');
 assertH5HostBridgePayloadBoundaries();
 
+console.log('[check:native-shells] h5-native-app-transport-timeout-boundaries');
+assertH5NativeAppTransportTimeoutBoundaries();
+
 console.log('[check:native-shells] production-shell-dev-scaffold-scan');
 assertNoProductionShellDevScaffoldTerms();