Add: Timer and Trigger modules with help subcommands

- Add /timer command: add, remove, list, listall, help
- Add /trigger command: add, remove, list, help
- Add /admin help and /owner help subcommands
- Add /twitch help subcommand
- Add ReminderManager for timer notifications
- Add reminders table to database
- Update README.md and AGENTS-BOT.md documentation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -58,6 +58,20 @@ npm run deploy
 - `/help` – Alle Befehle
 - `/twitch online <channel>` – Twitch-Status
 - `/twitch list` – Überwachte Kanäle
+- `/twitch help` – Twitch-Hilfe
+
+### Trigger (Auto-Antworten)
+- `/trigger add <wort> <antwort>` – Trigger hinzufügen (Mod)
+- `/trigger remove <wort>` – Trigger entfernen (Mod)
+- `/trigger list` – Alle Trigger anzeigen
+- `/trigger help` – Trigger-Hilfe
+
+### Timer (Erinnerungen)
+- `/timer add <zeit> <nachricht>` – Timer hinzufügen
+- `/timer remove <id>` – Timer entfernen (Mod)
+- `/timer list` – Timer dieses Kanals
+- `/timer listall` – Alle Timer (Mod)
+- `/timer help` – Timer-Hilfe
 
 ### Admin
 - `/twitch add <channel>` – Kanal überwachen
@@ -70,11 +84,13 @@ npm run deploy
 - `/admin ban <user>` – Nutzer bannen
 - `/admin unban <id>` – Nutzer entbannen
 - `/admin config` – Warn-System konfigurieren
+- `/admin help` – Admin-Hilfe
 
 ### Owner
 - `/owner deploy` – Commands neu registrieren
 - `/owner stats` – Bot-Statistiken
 - `/owner servers` – Alle Server
+- `/owner help` – Owner-Hilfe
 
 ## 📡 Features
 
@@ -85,4 +101,6 @@ npm run deploy
 - ✅ Auto-Deploy beim Start
 - ✅ Moderation Tools
 - ✅ Konfigurierbares Warn-System
+- ✅ Auto-Antworten (Trigger)
+- ✅ Timer & Erinnerungen
 - ✅ Docker Support