feat(exec-events): bead-6 - broadcast exec events

src/gateway/server-close.ts

@@ -21,6 +21,7 @@ export function createGatewayCloseHandler(params: {
   healthInterval: ReturnType<typeof setInterval>;
   dedupeCleanup: ReturnType<typeof setInterval>;
   agentUnsub: (() => void) | null;
+  execUnsub: (() => void) | null;
   heartbeatUnsub: (() => void) | null;
   chatRunState: { clear: () => void };
   clients: Set<{ socket: { close: (code: number, reason: string) => void } }>;
@@ -88,6 +89,13 @@ export function createGatewayCloseHandler(params: {
         /* ignore */
       }
     }
+    if (params.execUnsub) {
+      try {
+        params.execUnsub();
+      } catch {
+        /* ignore */
+      }
+    }
     if (params.heartbeatUnsub) {
       try {
         params.heartbeatUnsub();

src/gateway/server-methods-list.ts

@@ -108,4 +108,7 @@ export const GATEWAY_EVENTS = [
   "voicewake.changed",
   "exec.approval.requested",
   "exec.approval.resolved",
+  "exec.started",
+  "exec.output",
+  "exec.completed",
 ];

src/gateway/server.impl.ts

@@ -17,6 +17,7 @@ import { isDiagnosticsEnabled } from "../infra/diagnostic-events.js";
 import { logAcceptedEnvOption } from "../infra/env.js";
 import { applyPluginAutoEnable } from "../config/plugin-auto-enable.js";
 import { clearAgentRunContext, onAgentEvent } from "../infra/agent-events.js";
+import { onExecEvent } from "../infra/exec-events.js";
 import { onHeartbeatEvent } from "../infra/heartbeat-events.js";
 import { startHeartbeatRunner } from "../infra/heartbeat-runner.js";
 import { getMachineDisplayName } from "../infra/machine-name.js";
@@ -402,6 +403,10 @@ export async function startGatewayServer(
     }),
   );
 
+  const execUnsub = onExecEvent((evt) => {
+    broadcast(evt.event, evt, { dropIfSlow: true });
+  });
+
   const heartbeatUnsub = onHeartbeatEvent((evt) => {
     broadcast("heartbeat", evt, { dropIfSlow: true });
   });
@@ -559,6 +564,7 @@ export async function startGatewayServer(
     healthInterval,
     dedupeCleanup,
     agentUnsub,
+    execUnsub,
     heartbeatUnsub,
     chatRunState,
     clients,