收口宿主响应回放缓存边界

将 HostBridge 响应回放缓存上限提升到共享契约

让 Expo 移动壳复用共享缓存上限并拒绝本地重声明

让 Tauri 桌面壳配置检查反查共享缓存上限

补充两端回放缓存淘汰测试和壳方案文档

apps/desktop-shell/scripts/check-config.mjs

@@ -1030,6 +1030,10 @@ const sharedHostBridgePayloadLimits = {
     sharedContractSource,
     'HOST_BRIDGE_REQUEST_ID_MAX_LENGTH',
   ),
+  HOST_BRIDGE_RESPONSE_CACHE_MAX: extractTsNumberConst(
+    sharedContractSource,
+    'HOST_BRIDGE_RESPONSE_CACHE_MAX',
+  ),
   HOST_BRIDGE_BADGE_COUNT_MAX: extractTsNumberConst(
     sharedContractSource,
     'HOST_BRIDGE_BADGE_COUNT_MAX',
@@ -1084,6 +1088,10 @@ const desktopHostBridgePayloadLimits = {
     rustHostSource,
     'HOST_BRIDGE_REQUEST_ID_MAX_LENGTH',
   ),
+  HOST_BRIDGE_RESPONSE_CACHE_MAX: extractRustNumberConst(
+    rustHostSource,
+    'HOST_BRIDGE_RESPONSE_CACHE_MAX',
+  ),
   HOST_BRIDGE_BADGE_COUNT_MAX: extractRustNumberConst(
     rustHostSource,
     'BADGE_COUNT_MAX',