feat: harden code queue runtime UX

- add queue merge controls and no-cache overview loading\n- improve runtime probes, judge retries, and task trace rendering\n- extend CLI/E2E/docs coverage for code queue and user services

scripts/src/code-queue.ts

@@ -561,6 +561,42 @@ function requireQueueId(args: string[], command: string): string {
   return raw.trim();
 }
 
+function optionValue(args: string[], names: string[]): string | undefined {
+  for (const name of names) {
+    const index = args.indexOf(name);
+    if (index === -1) continue;
+    const raw = args[index + 1];
+    if (raw === undefined || raw.trim().length === 0) throw new Error(`${name} requires a non-empty value`);
+    return raw.trim();
+  }
+  return undefined;
+}
+
+function positionalArgs(args: string[]): string[] {
+  const positions: string[] = [];
+  for (let index = 0; index < args.length; index += 1) {
+    const value = args[index] ?? "";
+    if (value.startsWith("--")) {
+      index += 1;
+      continue;
+    }
+    positions.push(value);
+  }
+  return positions;
+}
+
+function requireMergeSourceQueueId(args: string[], command: string): string {
+  const raw = optionValue(args, ["--source", "--from", "--queue"]) ?? positionalArgs(args)[0];
+  if (raw === undefined || raw.trim().length === 0) throw new Error(`${command} requires source queue id, for example: codex queue merge old --into default`);
+  return raw.trim();
+}
+
+function requireMergeTargetQueueId(args: string[], command: string): string {
+  const raw = optionValue(args, ["--into", "--target", "--to"]) ?? positionalArgs(args)[1];
+  if (raw === undefined || raw.trim().length === 0) throw new Error(`${command} requires target queue id, for example: codex queue merge old --into default`);
+  return raw.trim();
+}
+
 function codeQueues(): unknown {
   return unwrapCodexResponse(coreInternalFetch("/api/microservices/code-queue/proxy/api/queues"));
 }
@@ -569,6 +605,10 @@ function codexCreateQueue(queueId: string): unknown {
   return unwrapCodexResponse(coreInternalFetch("/api/microservices/code-queue/proxy/api/queues", { method: "POST", body: { queueId } }));
 }
 
+function codexMergeQueue(sourceQueueId: string, targetQueueId: string): unknown {
+  return unwrapCodexResponse(coreInternalFetch(`/api/microservices/code-queue/proxy/api/queues/${encodeURIComponent(targetQueueId)}/merge`, { method: "POST", body: { sourceQueueId } }));
+}
+
 function codexMoveTask(taskId: string, queueId: string): unknown {
   return unwrapCodexResponse(coreInternalFetch(`/api/microservices/code-queue/proxy/api/tasks/${encodeURIComponent(taskId)}/move`, { method: "POST", body: { queueId } }));
 }
@@ -588,10 +628,14 @@ export async function runCodeQueueCommand(_config: UniDeskConfig, args: string[]
     const sub = taskIdArg ?? "list";
     if (sub === "list") return codeQueues();
     if (sub === "create") return codexCreateQueue(requireQueueId(args.slice(2), "queue create"));
+    if (sub === "merge") {
+      const mergeArgs = args.slice(2);
+      return codexMergeQueue(requireMergeSourceQueueId(mergeArgs, "queue merge"), requireMergeTargetQueueId(mergeArgs, "queue merge"));
+    }
   }
   if (action === "move") {
     const taskId = requireTaskId(taskIdArg, "codex move");
     return codexMoveTask(taskId, requireQueueId(args.slice(2), "codex move"));
   }
-  throw new Error("codex command must be one of: task, summary, show, output, queues, queue list, queue create, move");
+  throw new Error("codex command must be one of: task, summary, show, output, queues, queue list, queue create, queue merge, move");
 }