feat(companion): add generic platform event passthroughs

src/companion/platformClients.test.ts

@@ -28,9 +28,11 @@ function createRuntimeMock(): {
   subscribeAgentStream: ReturnType<typeof vi.fn>;
   subscribeAgentTyping: ReturnType<typeof vi.fn>;
   subscribeContextWarning: ReturnType<typeof vi.fn>;
+  subscribeEvents: ReturnType<typeof vi.fn>;
   waitForAgentStream: ReturnType<typeof vi.fn>;
   waitForAgentTyping: ReturnType<typeof vi.fn>;
   waitForContextWarning: ReturnType<typeof vi.fn>;
+  waitForAnyEvent: ReturnType<typeof vi.fn>;
 } {
   const connect = vi.fn(async () => undefined);
   const disconnect = vi.fn(() => undefined);
@@ -59,9 +61,11 @@ function createRuntimeMock(): {
   const subscribeAgentStream = vi.fn(() => () => undefined);
   const subscribeAgentTyping = vi.fn(() => () => undefined);
   const subscribeContextWarning = vi.fn(() => () => undefined);
+  const subscribeEvents = vi.fn(() => () => undefined);
   const waitForAgentStream = vi.fn(async () => ({ token: 'streamed' }));
   const waitForAgentTyping = vi.fn(async () => ({ active: true }));
   const waitForContextWarning = vi.fn(async () => ({ thresholdPct: 75, estimatedPct: 90 }));
+  const waitForAnyEvent = vi.fn(async () => ({ event: 'agent.stream', data: { token: 'any' } }));
 
   const runtime = {
     connect,
@@ -84,9 +88,11 @@ function createRuntimeMock(): {
     subscribeAgentStream,
     subscribeAgentTyping,
     subscribeContextWarning,
+    subscribeEvents,
     waitForAgentStream,
     waitForAgentTyping,
     waitForContextWarning,
+    waitForAnyEvent,
   } as unknown as CompanionRuntimeClient;
 
   return {
@@ -111,9 +117,11 @@ function createRuntimeMock(): {
     subscribeAgentStream,
     subscribeAgentTyping,
     subscribeContextWarning,
+    subscribeEvents,
     waitForAgentStream,
     waitForAgentTyping,
     waitForContextWarning,
+    waitForAnyEvent,
   };
 }
 
@@ -180,26 +188,33 @@ describe('platform companion clients', () => {
     const streamHandler = vi.fn();
     const typingHandler = vi.fn();
     const warningHandler = vi.fn();
+    const eventHandler = vi.fn();
 
     const unsubscribeStream = client.subscribeAgentStream(streamHandler);
     const unsubscribeTyping = client.subscribeAgentTyping(typingHandler);
     const unsubscribeWarning = client.subscribeContextWarning(warningHandler);
+    const unsubscribeEvents = client.subscribeEvents(eventHandler);
     const awaited = await client.waitForAgentStream<{ token: string }>({ timeoutMs: 500 });
     const waitedTyping = await client.waitForAgentTyping<{ active: boolean }>({ timeoutMs: 500 });
     const waitedWarning = await client.waitForContextWarning<{ thresholdPct: number; estimatedPct: number }>({ timeoutMs: 500 });
+    const waitedAny = await client.waitForAnyEvent<{ token: string }>(['agent.stream'], { timeoutMs: 500 });
 
     expect(mock.subscribeAgentStream).toHaveBeenCalledWith(streamHandler);
     expect(mock.subscribeAgentTyping).toHaveBeenCalledWith(typingHandler);
     expect(mock.subscribeContextWarning).toHaveBeenCalledWith(warningHandler);
+    expect(mock.subscribeEvents).toHaveBeenCalledWith(eventHandler);
     expect(mock.waitForAgentStream).toHaveBeenCalledWith({ timeoutMs: 500 });
     expect(mock.waitForAgentTyping).toHaveBeenCalledWith({ timeoutMs: 500 });
     expect(mock.waitForContextWarning).toHaveBeenCalledWith({ timeoutMs: 500 });
+    expect(mock.waitForAnyEvent).toHaveBeenCalledWith(['agent.stream'], { timeoutMs: 500 });
     expect(awaited).toEqual({ token: 'streamed' });
     expect(waitedTyping).toEqual({ active: true });
     expect(waitedWarning).toEqual({ thresholdPct: 75, estimatedPct: 90 });
+    expect(waitedAny).toEqual({ event: 'agent.stream', data: { token: 'any' } });
     unsubscribeStream();
     unsubscribeTyping();
     unsubscribeWarning();
+    unsubscribeEvents();
   });
 
   it('macOS client forwards canvas methods to runtime client', async () => {