fix(web): suppress duplicate toasts when auth session expires

Mark 401/refresh-failure errors as handled so per-view catch blocks fall
through silently while a single global "登录已过期" warning is shown.
Centralize ops-web error rendering via showOpsError.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/http-client/src/index.ts

@@ -26,6 +26,7 @@ export class ApiClientError extends Error {
   code: number
   detail?: string
   requestId?: string
+  handled?: boolean
 
   constructor(input: {
     message: string
@@ -33,6 +34,7 @@ export class ApiClientError extends Error {
     status?: number
     detail?: string
     requestId?: string
+    handled?: boolean
   }) {
     super(input.message)
     this.name = 'ApiClientError'
@@ -40,6 +42,7 @@ export class ApiClientError extends Error {
     this.status = input.status
     this.detail = input.detail
     this.requestId = input.requestId
+    this.handled = input.handled
   }
 }
 
@@ -78,6 +81,11 @@ function unwrapEnvelope<T>(response: { data: ApiEnvelope<T> }): T {
   return response.data.data
 }
 
+function markHandled(error: ApiClientError): ApiClientError {
+  error.handled = true
+  return error
+}
+
 export function createApiClient(options: CreateApiClientOptions = {}): ApiClient {
   const client = axios.create({
     baseURL: options.baseURL ?? '',
@@ -136,12 +144,14 @@ export function createApiClient(options: CreateApiClientOptions = {}): ApiClient
             const normalizedRefreshError = normalizeError(refreshError)
             if (normalizedRefreshError.status === 401) {
               auth.clearTokens()
+              throw markHandled(normalizedRefreshError)
             }
             throw normalizedRefreshError
           }
         }
 
         auth.clearTokens()
+        throw markHandled(normalizeError(error))
       }
 
       throw normalizeError(error)