feat: migrate app routes and business modules

services/api/request-controller.js

@@ -0,0 +1,31 @@
+const createRequestCancelledError = () => {
+  const error = new Error('请求已取消')
+  error.code = 'REQUEST_CANCELLED'
+  return error
+}
+
+// 页面只持有控制器，不依赖各端 RequestTask 的实现差异。
+// 新请求会接管控制器；页面卸载时 abort() 会拒绝等待中的 Promise，
+// 避免已销毁页面继续处理成功回调。
+export const createRequestController = () => {
+  let abortCurrent = null
+  return {
+    bind(abortRequest) {
+      if (typeof abortRequest !== 'function') throw new TypeError('请求中止器必须是函数')
+      if (abortCurrent) abortCurrent()
+      abortCurrent = abortRequest
+    },
+    release(abortRequest) {
+      if (abortCurrent === abortRequest) abortCurrent = null
+    },
+    abort() {
+      const abortRequest = abortCurrent
+      abortCurrent = null
+      if (abortRequest) abortRequest()
+    }
+  }
+}
+
+export const isRequestCancelled = (error) => error?.code === 'REQUEST_CANCELLED'
+
+export { createRequestCancelledError }