refactor: manage monitor via gateway hooks

plugin/calendar/calendar-bridge.ts

@@ -224,7 +224,7 @@ export class CalendarBridgeClient {
 // ---------------------------------------------------------------------------
 
 import { hostname } from 'os';
-import { getLivePluginConfig, type HarborForgeMonitorConfig } from '../core/live-config';
+import { getPluginConfig } from '../core/config';
 
 export interface CalendarPluginConfig {
   /** Backend URL for calendar API (overrides monitor backendUrl) */
@@ -249,10 +249,7 @@ export function createCalendarBridgeClient(
   fallbackUrl: string,
   agentId: string
 ): CalendarBridgeClient {
-  const baseConfig = getLivePluginConfig(api, {
-    backendUrl: fallbackUrl,
-    identifier: hostname(),
-  } as HarborForgeMonitorConfig) as HarborForgeMonitorConfig;
+  const baseConfig = getPluginConfig(api as any);
 
   const clawIdentifier = baseConfig.identifier || hostname();