fix(tests): resolve 4 post-phase test failures

- platformClients.integration: iOS/Android push tests lacked
  setStatus() call before listNodes(), so platform filter excluded
  nodes. Added publishHeartbeat() to set platform on connection state.
- server.test: agent.send now emits run_state events before done (Phase
  1). Added sendAndWaitForDone() helper and updated test to find done
  event rather than assuming index 0.
- handlers.test: updated agent.send/cancel assertions to use find()
  and pass send arg to agent.cancel, consistent with run_state events.
- httpBody: req.destroy() closed socket before 413 response could be
  sent. Removed socket destruction from body reader; 413 responses now
  send Connection: close so Node closes the connection cleanly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/automation/webhooks.ts

@@ -136,7 +136,7 @@ export class WebhookHandler implements ChannelAdapter {
     } catch (err) {
       if (err instanceof RequestBodyTooLargeError) {
         auditLogger?.webhookDenied(webhookName, `Payload too large (>${this.maxRequestBodyBytes} bytes)`);
-        res.writeHead(413, { 'Content-Type': 'application/json' });
+        res.writeHead(413, { 'Content-Type': 'application/json', 'Connection': 'close' });
         res.end(JSON.stringify({ error: 'Payload too large' }));
         return false;
       }

src/companion/platformClients.integration.test.ts

@@ -396,6 +396,7 @@ describe('platform clients integration', () => {
 
     try {
       await client.register();
+      await client.publishHeartbeat();
       const push = await client.registerPushToken({
         token: 'd'.repeat(64),
         topic: 'dev.flynn.ios',
@@ -424,6 +425,7 @@ describe('platform clients integration', () => {
 
     try {
       await client.register();
+      await client.publishHeartbeat();
       const push = await client.registerPushToken('e'.repeat(64));
 
       expect(push.updated).toBe(true);

src/gateway/handlers/agent.ts

@@ -212,7 +212,8 @@ export function createAgentHandlers(deps: AgentHandlerDeps) {
             command: parsedCommand,
           });
 
-          const isCommand = Boolean(commandInput && deps.commandRegistry?.isCommand(commandInput));
+          const commandRegistry = deps.commandRegistry;
+          const isCommand = Boolean(commandInput && commandRegistry?.isCommand(commandInput));
           if (!isCommand) {
             activeRequestIds.set(connectionId, request.id);
             auditLogger?.runState?.({
@@ -231,8 +232,11 @@ export function createAgentHandlers(deps: AgentHandlerDeps) {
           }
 
           if (isCommand) {
+            if (!commandRegistry) {
+              throw new Error('Command registry is not available');
+            }
             const sessionId = deps.sessionBridge.getSessionId(connectionId);
-            const commandResult = await deps.commandRegistry.execute(commandInput, {
+            const commandResult = await commandRegistry.execute(commandInput, {
               channel: 'ws',
               senderId: connectionId,
               sessionId: sessionId ?? `ws:${connectionId}`,

src/gateway/handlers/handlers.test.ts

@@ -1146,8 +1146,11 @@ describe('agent handlers', () => {
     await handlers['agent.send'](req, send);
 
     expect(mockAgent.process).toHaveBeenCalledWith('hello', undefined);
-    expect(sent).toHaveLength(1);
+    const doneEvent = sent.find((msg) => (msg as GatewayEvent).event === 'done') as GatewayEvent | undefined;
-    const doneEvent = sent[0] as GatewayEvent;
+    expect(doneEvent).toBeTruthy();
+    if (!doneEvent) {
+      throw new Error('done event not emitted');
+    }
     expect(doneEvent.event).toBe('done');
     expect(getPath(doneEvent.data, 'content')).toBe('response text');
   });
@@ -1171,7 +1174,11 @@ describe('agent handlers', () => {
       { mimeType: 'image/png', data: 'iVBOR...', url: undefined, filename: 'screenshot.png' },
       { mimeType: 'application/pdf', data: undefined, url: 'https://example.com/doc.pdf', filename: undefined },
     ]);
-    const doneEvent = sent[0] as GatewayEvent;
+    const doneEvent = sent.find((msg) => (msg as GatewayEvent).event === 'done') as GatewayEvent | undefined;
+    expect(doneEvent).toBeTruthy();
+    if (!doneEvent) {
+      throw new Error('done event not emitted');
+    }
     expect(doneEvent.event).toBe('done');
   });
 
@@ -1187,7 +1194,8 @@ describe('agent handlers', () => {
     await handlers['agent.send'](req, send);
 
     expect(mockAgent.process).toHaveBeenCalledWith('hi', []);
-    expect(sent).toHaveLength(1);
+    const doneEvent = sent.find((msg) => (msg as GatewayEvent).event === 'done');
+    expect(doneEvent).toBeTruthy();
   });
 
   it('agent.send accepts attachment-only requests', async () => {
@@ -1207,8 +1215,8 @@ describe('agent handlers', () => {
     expect(mockAgent.process).toHaveBeenCalledWith('', [
       { mimeType: 'image/png', data: 'iVBOR...', url: undefined, filename: undefined },
     ]);
-    expect(sent).toHaveLength(1);
+    const doneEvent = sent.find((msg) => (msg as GatewayEvent).event === 'done');
-    expect((sent[0] as GatewayEvent).event).toBe('done');
+    expect(doneEvent).toBeTruthy();
   });
 
   it('agent.send requires message or attachments', async () => {
@@ -1247,10 +1255,8 @@ describe('agent handlers', () => {
     await Promise.all([p1, p2]);
 
     // Both should have completed — no AgentBusy error
-    expect(sent1).toHaveLength(1);
+    expect(sent1.find((msg) => (msg as GatewayEvent).event === 'done')).toBeTruthy();
-    expect((sent1[0] as GatewayEvent).event).toBe('done');
+    expect(sent2.find((msg) => (msg as GatewayEvent).event === 'done')).toBeTruthy();
-    expect(sent2).toHaveLength(1);
-    expect((sent2[0] as GatewayEvent).event).toBe('done');
     expect(mockAgent.process).toHaveBeenCalledTimes(2);
   });
 
@@ -1262,7 +1268,11 @@ describe('agent handlers', () => {
 
     await handlers['agent.send'](req, send);
 
-    const errorEvent = sent[0] as GatewayEvent;
+    const errorEvent = sent.find((msg) => (msg as GatewayEvent).event === 'error') as GatewayEvent | undefined;
+    expect(errorEvent).toBeTruthy();
+    if (!errorEvent) {
+      throw new Error('error event not emitted');
+    }
     expect(errorEvent.event).toBe('error');
     expect(getPath(errorEvent.data, 'message')).toBe('model failed');
   });
@@ -1291,7 +1301,7 @@ describe('agent handlers', () => {
   it('agent.cancel returns cancelled state', async () => {
     mockBridge.cancel.mockReturnValue(true);
     const req: GatewayRequest = { id: 7, method: 'agent.cancel', params: { connectionId: 'conn-1' } };
-    const result = await handlers['agent.cancel'](req) as GatewayResponse;
+    const result = await handlers['agent.cancel'](req, vi.fn()) as GatewayResponse;
 
     expect(getPath(result.result, 'cancelled')).toBe(true);
     expect(getPath(result.result, 'message')).toContain('Cancellation requested');
@@ -1301,7 +1311,7 @@ describe('agent handlers', () => {
   it('agent.cancel returns not-cancelled when no active operation exists', async () => {
     mockBridge.cancel.mockReturnValue(false);
     const req: GatewayRequest = { id: 8, method: 'agent.cancel', params: { connectionId: 'conn-1' } };
-    const result = await handlers['agent.cancel'](req) as GatewayResponse;
+    const result = await handlers['agent.cancel'](req, vi.fn()) as GatewayResponse;
 
     expect(getPath(result.result, 'cancelled')).toBe(false);
     expect(getPath(result.result, 'message')).toContain('No active operation');

src/gateway/server.test.ts

@@ -102,6 +102,24 @@ function sendAndReceiveAll(ws: WebSocket, msg: object, count: number): Promise<A
   });
 }
 
+/** Send a request and collect messages until a terminal event ('done' or 'error') is received. */
+function sendAndWaitForDone(ws: WebSocket, msg: object): Promise<Array<GatewayResponse | GatewayError | GatewayEvent>> {
+  return new Promise((resolve) => {
+    const messages: Array<GatewayResponse | GatewayError | GatewayEvent> = [];
+    const handler = (data: Buffer) => {
+      const parsed = JSON.parse(data.toString()) as GatewayResponse | GatewayError | GatewayEvent;
+      messages.push(parsed);
+      const event = parsed as GatewayEvent;
+      if (event.event === 'done' || event.event === 'error') {
+        ws.off('message', handler);
+        resolve(messages);
+      }
+    };
+    ws.on('message', handler);
+    ws.send(JSON.stringify(msg));
+  });
+}
+
 beforeAll(async () => {
   LISTEN_ALLOWED = await canListenOnLocalhost();
 });
@@ -231,9 +249,10 @@ describe('GatewayServer integration', () => {
     }
     const ws = await createClient();
     try {
-      // agent.send streams events — we expect a 'done' event
+      // agent.send streams events (run_state + done) — wait for terminal done event
-      const messages = await sendAndReceiveAll(ws, { id: 4, method: 'agent.send', params: { message: 'hi' } }, 1);
+      const messages = await sendAndWaitForDone(ws, { id: 4, method: 'agent.send', params: { message: 'hi' } });
-      const doneEvent = messages[0] as GatewayEvent;
+      const doneEvent = messages.find((m) => (m as GatewayEvent).event === 'done') as GatewayEvent;
+      expect(doneEvent).toBeTruthy();
       expect(doneEvent.id).toBe(4);
       expect(doneEvent.event).toBe('done');
       expect((doneEvent.data as { content?: string }).content).toBe('Hello from Flynn!');

src/gateway/server.ts

@@ -823,7 +823,7 @@ export class GatewayServer {
         rawBody = await this.readRequestBody(req);
       } catch (err) {
         if (err instanceof RequestBodyTooLargeError) {
-          res.writeHead(413, { 'Content-Type': 'application/json' });
+          res.writeHead(413, { 'Content-Type': 'application/json', 'Connection': 'close' });
           res.end(JSON.stringify({ error: 'Payload too large' }));
           return true;
         }
@@ -887,7 +887,7 @@ export class GatewayServer {
         rawBody = await this.readRequestBody(req);
       } catch (err) {
         if (err instanceof RequestBodyTooLargeError) {
-          res.writeHead(413, { 'Content-Type': 'application/json' });
+          res.writeHead(413, { 'Content-Type': 'application/json', 'Connection': 'close' });
           res.end(JSON.stringify({ error: 'Payload too large' }));
           return true;
         }
@@ -974,7 +974,7 @@ export class GatewayServer {
         res.end(JSON.stringify({ ok: true }));
       } catch (err) {
         if (err instanceof RequestBodyTooLargeError) {
-          res.writeHead(413, { 'Content-Type': 'application/json' });
+          res.writeHead(413, { 'Content-Type': 'application/json', 'Connection': 'close' });
           res.end(JSON.stringify({ error: 'Payload too large' }));
         } else {
           console.error('Gmail push handler error:', err instanceof Error ? err.message : err);

src/gateway/ui/pages/chat.test.ts

@@ -248,8 +248,11 @@ describe('ChatPage wiring', () => {
     await Promise.resolve();
 
     const statusLine = Array.from(root.querySelectorAll('div'))
-      .find((el: any) => String(el.textContent ?? '').startsWith('Run status:'));
+      .find((el: any) => String(el.textContent ?? '').startsWith('Run status:')) as any;
     expect(statusLine).toBeTruthy();
+    if (!statusLine) {
+      throw new Error('Run status line not found');
+    }
     expect(statusLine.classList.contains('hidden')).toBe(false);
 
     resolveResult?.({ content: 'ok' });

src/utils/httpBody.test.ts

@@ -29,7 +29,7 @@ describe('readRequestBody', () => {
     expect(req.destroyed).toBe(false);
   });
 
-  it('rejects oversized body and destroys request', async () => {
+  it('rejects oversized body with RequestBodyTooLargeError', async () => {
     const req = new MockRequest();
     const bodyPromise = readRequestBody(asIncoming(req), { maxBytes: 5 });
 
@@ -37,6 +37,5 @@ describe('readRequestBody', () => {
     req.emit('data', Buffer.from('6'));
 
     await expect(bodyPromise).rejects.toBeInstanceOf(RequestBodyTooLargeError);
-    expect(req.destroyed).toBe(true);
   });
 });

src/utils/httpBody.ts

@@ -40,9 +40,6 @@ export function readRequestBody(req: IncomingMessage, opts: ReadRequestBodyOptio
       const buf = Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk);
       totalBytes += buf.length;
       if (totalBytes > opts.maxBytes) {
-        if (typeof req.destroy === 'function') {
-          req.destroy();
-        }
         fail(new RequestBodyTooLargeError(opts.maxBytes, totalBytes));
         return;
       }