feat(companion): add hasPendingWork runtime observability

src/companion/platformClients.test.ts

@@ -40,6 +40,7 @@ function createRuntimeMock(): {
   eventSubscriptionCount: number;
   pendingRequestCount: number;
   pendingEventWaitCount: number;
+  hasPendingWork: boolean;
   connected: boolean;
 } {
   const connect = vi.fn(async () => undefined);
@@ -81,6 +82,7 @@ function createRuntimeMock(): {
   const eventSubscriptionCount = 3;
   const pendingRequestCount = 2;
   const pendingEventWaitCount = 1;
+  const hasPendingWork = true;
   const connected = true;
 
   const runtime = {
@@ -122,6 +124,9 @@ function createRuntimeMock(): {
     get pendingEventWaitCount() {
       return pendingEventWaitCount;
     },
+    get hasPendingWork() {
+      return hasPendingWork;
+    },
     get connected() {
       return connected;
     },
@@ -161,6 +166,7 @@ function createRuntimeMock(): {
     eventSubscriptionCount,
     pendingRequestCount,
     pendingEventWaitCount,
+    hasPendingWork,
     connected,
   };
 }
@@ -320,6 +326,13 @@ describe('platform companion clients', () => {
     expect(client.pendingEventWaitCount).toBe(mock.pendingEventWaitCount);
   });
 
+  it('platform hasPendingWork forwards runtime getter value', async () => {
+    const mock = createRuntimeMock();
+    const client = new IOSCompanionClient({ runtime: mock.runtime, nodeId: 'ios-node' });
+
+    expect(client.hasPendingWork).toBe(mock.hasPendingWork);
+  });
+
   it('macOS client forwards canvas methods to runtime client', async () => {
     const mock = createRuntimeMock();
     const client = new MacOSCompanionClient({ runtime: mock.runtime, nodeId: 'mac-node' });

src/companion/platformClients.ts

@@ -283,6 +283,10 @@ export class MacOSCompanionClient {
     return this.runtime.pendingEventWaitCount;
   }
 
+  get hasPendingWork(): boolean {
+    return this.runtime.hasPendingWork;
+  }
+
   waitForAnyEvent<TData = unknown>(
     eventNames: readonly (CompanionEventName | string)[],
     options?: {
@@ -533,6 +537,10 @@ export class IOSCompanionClient {
     return this.runtime.pendingEventWaitCount;
   }
 
+  get hasPendingWork(): boolean {
+    return this.runtime.hasPendingWork;
+  }
+
   waitForAnyEvent<TData = unknown>(
     eventNames: readonly (CompanionEventName | string)[],
     options?: {
@@ -781,6 +789,10 @@ export class AndroidCompanionClient {
     return this.runtime.pendingEventWaitCount;
   }
 
+  get hasPendingWork(): boolean {
+    return this.runtime.hasPendingWork;
+  }
+
   waitForAnyEvent<TData = unknown>(
     eventNames: readonly (CompanionEventName | string)[],
     options?: {

src/companion/runtimeClient.test.ts

@@ -306,12 +306,14 @@ describe('CompanionRuntimeClient', () => {
       url: 'ws://127.0.0.1:1',
     });
     expect(client.pendingEventWaitCount).toBe(0);
+    expect(client.hasPendingWork).toBe(false);
 
     const awaited = client.waitForEvent<{ seq: number }>('agent.stream', {
       timeoutMs: 2000,
       predicate: (data) => data.seq === 2,
     });
     expect(client.pendingEventWaitCount).toBe(1);
+    expect(client.hasPendingWork).toBe(true);
 
     (client as unknown as { handleMessage: (raw: string) => void }).handleMessage(
       JSON.stringify({
@@ -330,6 +332,7 @@ describe('CompanionRuntimeClient', () => {
 
     await expect(awaited).resolves.toEqual({ seq: 2 });
     expect(client.pendingEventWaitCount).toBe(0);
+    expect(client.hasPendingWork).toBe(false);
   });
 
   it('waitForEvent rejects on timeout', async () => {
@@ -628,13 +631,16 @@ describe('CompanionRuntimeClient', () => {
     });
     await client.connect();
     expect(client.pendingRequestCount).toBe(0);
+    expect(client.hasPendingWork).toBe(false);
 
     const pending = client.call('system.capabilities');
     expect(client.pendingRequestCount).toBe(1);
+    expect(client.hasPendingWork).toBe(true);
 
     client.disconnect();
     await expect(pending).rejects.toThrow('Disconnected');
     expect(client.pendingRequestCount).toBe(0);
+    expect(client.hasPendingWork).toBe(false);
   });
 
   it('connects and performs node registration + capability discovery', async () => {

src/companion/runtimeClient.ts

@@ -310,6 +310,10 @@ export class CompanionRuntimeClient {
     return this.pendingEventWaits.size;
   }
 
+  get hasPendingWork(): boolean {
+    return this.pendingRequestCount > 0 || this.pendingEventWaitCount > 0;
+  }
+
   async connect(): Promise<void> {
     if (this.connected) {
       return;