Implement agent runtime services and WebSocket realtime

Expand heartbeat service with full run executor, wakeup coordinator,
and adapter lifecycle. Add run-log-store for pluggable log persistence.
Add live-events service and WebSocket handler for realtime updates.
Expand agent and issue routes with runtime operations. Add ws dependency.

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

server/src/services/index.ts

@@ -9,3 +9,4 @@ export { costService } from "./costs.js";
 export { heartbeatService } from "./heartbeat.js";
 export { dashboardService } from "./dashboard.js";
 export { logActivity, type LogActivityInput } from "./activity-log.js";
+export { publishLiveEvent, subscribeCompanyLiveEvents } from "./live-events.js";