[codex] background route decision refresh (#370)

* background route decision refresh

* address route decision refresh review

* fix route decision refresh typing

src/shared/tokenRouteContract.d.ts

@@ -1,3 +1,4 @@
+export declare const ROUTE_DECISION_REFRESH_TASK_TYPE = "route-decision.refresh";
 export type RouteMode = 'pattern' | 'explicit_group';
 export type RouteDecisionCandidate = {
     channelId: number;

src/shared/tokenRouteContract.js

@@ -1,3 +1,5 @@
+export const ROUTE_DECISION_REFRESH_TASK_TYPE = 'route-decision.refresh';
+
 export function normalizeTokenRouteMode(routeMode) {
     return routeMode === 'explicit_group' ? 'explicit_group' : 'pattern';
 }

src/shared/tokenRouteContract.test.ts

@@ -1,6 +1,12 @@
 import { describe, expect, it } from 'vitest';
 
 describe('token route contract', () => {
+  it('exports the route decision refresh task type', async () => {
+    const { ROUTE_DECISION_REFRESH_TASK_TYPE } = await import('./tokenRouteContract.js');
+
+    expect(ROUTE_DECISION_REFRESH_TASK_TYPE).toBe('route-decision.refresh');
+  });
+
   it('normalizes unknown route modes to pattern', async () => {
     const { normalizeTokenRouteMode } = await import('./tokenRouteContract.js');