fix: harden production chat runtime

tests/dispatch-plan-confirmation.test.ts

@@ -188,6 +188,12 @@ test("POST /api/v1/projects/[projectId]/dispatch-plans/[planId]/confirm confirms
     plan: { planId: string; status: string; confirmedTargetProjectIds: string[] };
     executions: Array<{ planId: string; targetProjectId: string; status: string }>;
     notice: { kind: string; body: string } | null;
+    collaborationGate: {
+      isGroup: boolean;
+      collaborationMode: string;
+      requiresMasterAgentApproval: boolean;
+      approvalState: string;
+    };
   };
   assert.equal(payload.ok, true);
   assert.equal(payload.plan.planId, dispatchPlan.planId);
@@ -200,6 +206,10 @@ test("POST /api/v1/projects/[projectId]/dispatch-plans/[planId]/confirm confirms
   assert.ok(payload.notice, "expected a confirmation notice in the response");
   assert.equal(payload.notice?.kind, "system_notice");
   assert.equal(payload.notice?.body, "已确认下发到 1 个线程：《北区试产线回归》。");
+  assert.equal(payload.collaborationGate.isGroup, true);
+  assert.equal(payload.collaborationGate.collaborationMode, "development");
+  assert.equal(payload.collaborationGate.requiresMasterAgentApproval, false);
+  assert.equal(payload.collaborationGate.approvalState, "not_required");
 
   const nextState = await readState();
   const notice = nextState.projects
@@ -279,12 +289,22 @@ test("rejecting a dispatch plan marks approval_required groups as rejected and w
     ok: boolean;
     plan: { planId: string; status: string };
     notice: { kind: string; body: string };
+    collaborationGate: {
+      isGroup: boolean;
+      collaborationMode: string;
+      requiresMasterAgentApproval: boolean;
+      approvalState: string;
+    };
   };
   assert.equal(payload.ok, true);
   assert.equal(payload.plan.planId, dispatchPlan.planId);
   assert.equal(payload.plan.status, "rejected");
   assert.equal(payload.notice.kind, "system_notice");
   assert.equal(payload.notice.body, "已拒绝主 Agent 推荐，本次不会下发到任何线程。");
+  assert.equal(payload.collaborationGate.isGroup, true);
+  assert.equal(payload.collaborationGate.collaborationMode, "approval_required");
+  assert.equal(payload.collaborationGate.requiresMasterAgentApproval, true);
+  assert.equal(payload.collaborationGate.approvalState, "rejected");
 
   const nextState = await readState();
   const nextGroupProject = nextState.projects.find((project) => project.id === groupProject.id);