Add agent runtime DB schemas and expand shared types

New schemas: agent_runtime_state, agent_wakeup_requests,
heartbeat_run_events. New migrations for runtime tables. Expand
heartbeat types with run events, wakeup reasons, and adapter state.
Add live event types. Update agent schema and shared constants.

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

packages/shared/src/validators/index.ts

@@ -9,9 +9,11 @@ export {
   createAgentSchema,
   updateAgentSchema,
   createAgentKeySchema,
+  wakeAgentSchema,
   type CreateAgent,
   type UpdateAgent,
   type CreateAgentKey,
+  type WakeAgent,
 } from "./agent.js";
 
 export {