feat: add omx orchestration backend selection

tests/dispatch-plan-confirmation.test.ts

@@ -151,9 +151,18 @@ async function createDispatchPlanForTest() {
   );
   assert.equal(response.status, 200);
   const payload = (await response.json()) as {
-    dispatchPlan: { planId: string; targets: Array<{ projectId: string }> } | null;
+    dispatchPlan:
+      | {
+          planId: string;
+          targets: Array<{ projectId: string }>;
+          orchestrationBackendId?: string;
+          orchestrationBackendLabel?: string;
+        }
+      | null;
   };
   assert.ok(payload.dispatchPlan, "expected seeded dispatch plan");
+  assert.equal(payload.dispatchPlan?.orchestrationBackendId, "boss-native-orchestrator");
+  assert.equal(payload.dispatchPlan?.orchestrationBackendLabel, "Boss Native Orchestrator");
   return { groupProject, dispatchPlan: payload.dispatchPlan };
 }
 
@@ -195,8 +204,20 @@ test("POST /api/v1/projects/[projectId]/dispatch-plans/[planId]/confirm confirms
 
   const payload = (await response.json()) as {
     ok: boolean;
-    plan: { planId: string; status: string; confirmedTargetProjectIds: string[] };
-    executions: Array<{ planId: string; targetProjectId: string; status: string }>;
+    plan: {
+      planId: string;
+      status: string;
+      confirmedTargetProjectIds: string[];
+      orchestrationBackendId?: string;
+      orchestrationBackendLabel?: string;
+    };
+    executions: Array<{
+      planId: string;
+      targetProjectId: string;
+      status: string;
+      orchestrationBackendId?: string;
+      orchestrationBackendLabel?: string;
+    }>;
     notice: { kind: string; body: string } | null;
     collaborationGate: {
       isGroup: boolean;
@@ -231,6 +252,23 @@ test("POST /api/v1/projects/[projectId]/dispatch-plans/[planId]/confirm confirms
         message.body.includes("已确认下发到 1 个线程"),
     );
   assert.ok(notice, "expected a master-agent notice in the group chat after confirmation");
+  const confirmedPlan = nextState.dispatchPlans.find((plan) => plan.planId === dispatchPlan.planId);
+  assert.ok(confirmedPlan, "expected confirmed dispatch plan in state");
+  assert.equal(confirmedPlan?.orchestrationBackendId, "boss-native-orchestrator");
+  assert.equal(confirmedPlan?.orchestrationBackendLabel, "Boss Native Orchestrator");
+  const createdExecution = nextState.dispatchExecutions.find((item) => item.planId === dispatchPlan.planId);
+  assert.ok(createdExecution, "expected dispatch execution in state");
+  assert.equal(createdExecution?.orchestrationBackendId, "boss-native-orchestrator");
+  assert.equal(createdExecution?.orchestrationBackendLabel, "Boss Native Orchestrator");
+  const executionTask = nextState.masterAgentTasks.find(
+    (task) =>
+      task.taskType === "dispatch_execution" &&
+      task.projectId === groupProject.id &&
+      task.targetProjectId === approvedTargetProjectId,
+  );
+  assert.ok(executionTask, "expected queued dispatch execution task");
+  assert.equal(executionTask?.orchestrationBackendId, "boss-native-orchestrator");
+  assert.equal(executionTask?.orchestrationBackendLabel, "Boss Native Orchestrator");
 });
 
 test("confirming a dispatch plan marks approval_required groups as approved", async () => {