refactor: consolidate requests and finalize agent tool states

Share project JSON transport, interaction replies and report selectors.
Settle tool progress consistently for direct streams, reconnects and history, preserving failure reasons and stopped state.

src/features/workbench/api/project-request.ts

@@ -48,18 +48,19 @@ export async function withProjectRequest<T>(
   baseUrl: string,
   operation: string,
   request: (signal: AbortSignal) => Promise<T>,
-  signal?: AbortSignal
+  signal?: AbortSignal,
+  timeoutMs: number | null = PROJECT_REQUEST_TIMEOUT_MS
 ): Promise<T> {
-  const deadline = AbortSignal.timeout(PROJECT_REQUEST_TIMEOUT_MS);
-  const combined = signal ? AbortSignal.any([signal, deadline]) : deadline;
+  const deadline = timeoutMs == null ? undefined : AbortSignal.timeout(timeoutMs);
+  const combined = signal && deadline ? AbortSignal.any([signal, deadline]) : signal ?? deadline ?? new AbortController().signal;
   try {
     combined.throwIfAborted();
     return await request(combined);
   } catch (error) {
     if (signal?.aborted && !isTimeout(signal.reason)) throw signal.reason;
-    if (isTimeout(error) || (combined.aborted && isTimeout(combined.reason))) {
+    if (timeoutMs != null && (isTimeout(error) || (combined.aborted && isTimeout(combined.reason)))) {
       const diagnosis = await describeServerReadiness(baseUrl);
-      throw new Error(`${operation}超时（已等待 15 秒）。${diagnosis}`, { cause: error });
+      throw new Error(`${operation}超时（已等待 ${timeoutMs / 1000} 秒）。${diagnosis}`, { cause: error });
     }
     if (error instanceof TypeError || (error instanceof DOMException && error.name === "NetworkError")) {
       throw new Error(`${operation}失败：无法连接后端服务。请检查网络和后端服务状态后重试。`, { cause: error });