feat: add Codex CLI support, dual Discord bots, and Discord typing fix

- Add Codex as alternative agent type (agentType: 'codex' per group)
- Codex container runner with session resume and 100-turn limit
- Dual Discord bot support (DISCORD_BOT_TOKEN + DISCORD_CODEX_BOT_TOKEN)
- Each bot handles only its agentType's registered groups
- Discord typing indicator refreshes every 8s (was single-shot, expired after ~10s)
- Agent runner 100-turn limit to prevent infinite bot-to-bot loops
- Apple Container runtime support (convert-to-apple-container skill)
- Session commands (/compact) support
- DB migration for agent_type column

src/group-queue.ts

@@ -59,11 +59,16 @@ export class GroupQueue {
     this.processMessagesFn = fn;
   }
 
-  enqueueMessageCheck(groupJid: string): void {
+  enqueueMessageCheck(groupJid: string, groupFolder?: string): void {
     if (this.shuttingDown) return;
 
     const state = this.getGroup(groupJid);
 
+    // Pre-set groupFolder so sendMessage can pipe IPC while container starts
+    if (groupFolder && !state.groupFolder) {
+      state.groupFolder = groupFolder;
+    }
+
     if (state.active) {
       state.pendingMessages = true;
       logger.debug({ groupJid }, 'Container active, message queued');