feat: refine codex live chat flow

scripts/run-server-command-runner.mjs

@@ -505,6 +505,7 @@ async function runCodexLiveExecution(payload, response) {
   const resourceDir = path.join(repoPath, 'public', '.codex_chat', sessionId, 'resource');
   const uploadDir = path.join(resourceDir, 'uploads');
   const codexBin = process.env.SERVER_COMMAND_RUNNER_CODEX_BIN?.trim() || process.env.PLAN_CODEX_BIN?.trim() || 'codex';
+  const configuredMaxExecutionMs = resolveCodexLiveMaxExecutionMs(payload?.maxExecutionSeconds);
 
   if (!requestId || !sessionId || !prompt.trim()) {
     sendJson(response, 400, {
@@ -619,9 +620,9 @@ async function runCodexLiveExecution(payload, response) {
 
   executionTimer = setTimeout(() => {
     requestTermination(
-      `Codex Live 실행이 ${Math.round(CODEX_LIVE_MAX_EXECUTION_MS / 1000)}초를 넘어 중단되었습니다.`,
+      `Codex Live 실행이 ${Math.round(configuredMaxExecutionMs / 1000)}초를 넘어 중단되었습니다.`,
     );
-  }, CODEX_LIVE_MAX_EXECUTION_MS);
+  }, configuredMaxExecutionMs);
   executionTimer.unref?.();
   refreshIdleTimer();
 
@@ -758,6 +759,14 @@ async function runCodexLiveExecution(payload, response) {
   child.stdin?.end(prompt);
 }
 
+function resolveCodexLiveMaxExecutionMs(value) {
+  if (typeof value !== 'number' || !Number.isFinite(value)) {
+    return CODEX_LIVE_MAX_EXECUTION_MS;
+  }
+
+  return Math.max(CODEX_LIVE_IDLE_TIMEOUT_MS, Math.min(7_200_000, Math.max(60_000, Math.round(value * 1000))));
+}
+
 function isAuthorized(request) {
   const token = String(request.headers['x-access-token'] ?? '').trim();
   return token.length > 0 && token === accessToken;