feat(sse): scope timeline events to affected audiences

packages/api/src/__tests__/allocation-router.test.ts

@@ -999,7 +999,7 @@ describe("allocation entry resolution router", () => {
     expect(db.assignment.delete).toHaveBeenCalledWith({
       where: { id: "assignment_explicit_1" },
     });
-    expect(emitAllocationDeleted).toHaveBeenCalledWith("assignment_explicit_1", "project_1");
+    expect(emitAllocationDeleted).toHaveBeenCalledWith("assignment_explicit_1", "project_1", "resource_1");
   });
 
   it("updates an explicit demand row through allocation.update", async () => {

packages/api/src/__tests__/event-bus-debounce.test.ts

@@ -5,6 +5,7 @@ import {
   eventBus,
   flushPendingEvents,
   permissionAudience,
+  resourceAudience,
   type SseEvent,
   userAudience,
 } from "../sse/event-bus.js";
@@ -231,4 +232,37 @@ describe("event-bus debounce", () => {
     unsubscribeFirst();
     unsubscribeSecond();
   });
+
+  it("delivers planning events to both staff and the affected resource audience", () => {
+    const managerReceived: SseEvent[] = [];
+    const resourceReceived: SseEvent[] = [];
+    const unsubscribeManager = eventBus.subscribe((event) => {
+      managerReceived.push(event);
+    }, {
+      audiences: [permissionAudience("manageAllocations")],
+      includeUnscoped: false,
+    });
+    const unsubscribeResource = eventBus.subscribe((event) => {
+      resourceReceived.push(event);
+    }, {
+      audiences: [resourceAudience("res_1")],
+      includeUnscoped: false,
+    });
+
+    eventBus.emit(
+      SSE_EVENT_TYPES.ALLOCATION_UPDATED,
+      { id: "a1", resourceId: "res_1" },
+      [permissionAudience("manageAllocations"), resourceAudience("res_1")],
+    );
+
+    vi.advanceTimersByTime(50);
+
+    expect(managerReceived).toHaveLength(1);
+    expect(resourceReceived).toHaveLength(1);
+    expect(managerReceived[0]!.type).toBe(SSE_EVENT_TYPES.ALLOCATION_UPDATED);
+    expect(resourceReceived[0]!.payload).toEqual({ id: "a1", resourceId: "res_1" });
+
+    unsubscribeManager();
+    unsubscribeResource();
+  });
 });