fix(primer): refresh Codex usage before primer and allow 1% fresh accounts

Codex primer was skipping with no_eligible_accounts because it read a
stale usage cache and required exactly 0% usage. Re-query usage right
before the primer call and treat freshly-reset 0~1% accounts as eligible
so the 5h window can be anchored at the fixed KST slot. Also hold new
Codex-owner turns at fresh usage until the next primer slot.

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>

src/usage-primer.ts

@@ -3,6 +3,10 @@ import fs from 'fs';
 import path from 'path';
 
 import { CODEX_WARMUP_CONFIG } from './config.js';
+import {
+  refreshActiveCodexUsage,
+  refreshAllCodexAccountUsage,
+} from './codex-usage-collector.js';
 import { runCodexWarmupCycle } from './codex-warmup.js';
 import { logger } from './logger.js';
 import { getAllTokens } from './token-rotation.js';
@@ -22,7 +26,10 @@ const PRIMER_HOURS_KST = [8, 13, 18, 23];
 const KST_OFFSET_MS = 9 * 60 * 60 * 1000;
 const CLAUDE_PRIMER_TIMEOUT_MS = 60_000;
 const CODEX_PRIMER_MIN_INTERVAL_MS = 5 * 60 * 60 * 1000;
-const CODEX_PRIMER_MAX_USAGE_PCT = 0;
+// Codex's rate-limit read can report a freshly reset, otherwise idle account
+// as 1%. Treat that as still eligible so the real primer call can anchor the
+// 5h inference window at the fixed slot.
+const CODEX_PRIMER_MAX_USAGE_PCT = 1;
 const CODEX_PRIMER_MAX_D7_USAGE_PCT = 100;
 
 function resolveClaudeBinary(): string {
@@ -131,8 +138,10 @@ async function runClaudePrimerCycle(): Promise<void> {
   }
 }
 
-async function runCodexPrimerCycle(): Promise<void> {
+export async function runCodexPrimerCycle(): Promise<void> {
   try {
+    await refreshAllCodexAccountUsage();
+    await refreshActiveCodexUsage();
     const result = await runCodexWarmupCycle(
       {
         ...CODEX_WARMUP_CONFIG,