feat: refine codex live chat flow

src/app/main/appConfig.ts

@@ -18,6 +18,7 @@ export type AppConfig = {
   chat: {
     maxContextMessages: number;
     maxContextChars: number;
+    codexLiveMaxExecutionSeconds: number;
   };
   automation: {
     autoRefreshEnabled: boolean;
@@ -70,6 +71,7 @@ export const DEFAULT_APP_CONFIG: AppConfig = {
   chat: {
     maxContextMessages: 12,
     maxContextChars: 3200,
+    codexLiveMaxExecutionSeconds: 600,
   },
   automation: {
     autoRefreshEnabled: true,
@@ -243,6 +245,14 @@ function normalizeChatContextCharLimit(value: number | undefined, fallback: numb
   return Math.min(20_000, Math.max(500, Math.round(value)));
 }
 
+function normalizeCodexLiveMaxExecutionSeconds(value: number | undefined, fallback: number) {
+  if (value === undefined || !Number.isFinite(value)) {
+    return fallback;
+  }
+
+  return Math.min(7200, Math.max(60, Math.round(value)));
+}
+
 function normalizeConfig(raw?: Partial<AppConfig>): AppConfig {
   const chat = raw?.chat;
   const automation = raw?.automation;
@@ -258,6 +268,10 @@ function normalizeConfig(raw?: Partial<AppConfig>): AppConfig {
         DEFAULT_APP_CONFIG.chat.maxContextMessages,
       ),
       maxContextChars: normalizeChatContextCharLimit(chat?.maxContextChars, DEFAULT_APP_CONFIG.chat.maxContextChars),
+      codexLiveMaxExecutionSeconds: normalizeCodexLiveMaxExecutionSeconds(
+        chat?.codexLiveMaxExecutionSeconds,
+        DEFAULT_APP_CONFIG.chat.codexLiveMaxExecutionSeconds,
+      ),
     },
     automation: {
       autoRefreshEnabled: automation?.autoRefreshEnabled ?? DEFAULT_APP_CONFIG.automation.autoRefreshEnabled,