feat(orchestrator): add recent events API and monitor script

apps/orchestrator/src/api/agents/agents.controller.spec.ts

@@ -28,6 +28,7 @@ describe("AgentsController", () => {
     subscribe: ReturnType<typeof vi.fn>;
     getInitialSnapshot: ReturnType<typeof vi.fn>;
     createHeartbeat: ReturnType<typeof vi.fn>;
+    getRecentEvents: ReturnType<typeof vi.fn>;
   };
 
   beforeEach(() => {
@@ -65,6 +66,7 @@ describe("AgentsController", () => {
         timestamp: new Date().toISOString(),
         data: { heartbeat: true },
       }),
+      getRecentEvents: vi.fn().mockReturnValue([]),
     };
 
     // Create controller with mocked services
@@ -362,4 +364,39 @@ describe("AgentsController", () => {
       });
     });
   });
+
+  describe("getRecentEvents", () => {
+    it("should return recent events with default limit", () => {
+      eventsService.getRecentEvents.mockReturnValue([
+        {
+          type: "task.completed",
+          timestamp: "2026-02-17T15:00:00.000Z",
+          taskId: "task-123",
+        },
+      ]);
+
+      const result = controller.getRecentEvents();
+
+      expect(eventsService.getRecentEvents).toHaveBeenCalledWith(100);
+      expect(result).toEqual({
+        events: [
+          {
+            type: "task.completed",
+            timestamp: "2026-02-17T15:00:00.000Z",
+            taskId: "task-123",
+          },
+        ],
+      });
+    });
+
+    it("should parse and pass custom limit", () => {
+      controller.getRecentEvents("25");
+      expect(eventsService.getRecentEvents).toHaveBeenCalledWith(25);
+    });
+
+    it("should fallback to default when limit is invalid", () => {
+      controller.getRecentEvents("invalid");
+      expect(eventsService.getRecentEvents).toHaveBeenCalledWith(100);
+    });
+  });
 });