🔥 remove: Telegram bots - Matrix-only strategy

Remove all 6 Telegram bot services to focus on Matrix as the sole
messaging platform for full UI/UX control and DSGVO compliance.

Removed services:
- telegram-nutriphi-bot
- telegram-ollama-bot
- telegram-project-doc-bot
- telegram-stats-bot
- telegram-todo-bot
- telegram-zitare-bot

Also:
- Remove Telegram bot scripts from package.json
- Remove telegram-stats-bot from docker-compose.macmini.yml
- Disable Watchtower Telegram notifications
- Remove Telegram devlog
- Add comprehensive MATRIX_BOT_ARCHITECTURE.md documentation

The Matrix-only approach provides:
- Full control over user experience
- Complete DSGVO compliance (all data on own servers)
- No dependency on third-party platforms
- Unified command patterns across all bots

docker-compose.macmini.yml

@@ -957,38 +957,6 @@ services:
       retries: 3
       start_period: 40s
 
-  # ============================================
-  # Telegram Stats Bot
-  # ============================================
-
-  telegram-stats-bot:
-    image: ghcr.io/memo-2023/telegram-stats-bot:latest
-    container_name: manacore-telegram-stats-bot
-    restart: always
-    depends_on:
-      postgres:
-        condition: service_healthy
-      umami:
-        condition: service_healthy
-    environment:
-      NODE_ENV: production
-      PORT: 3300
-      TZ: Europe/Berlin
-      TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN}
-      TELEGRAM_CHAT_ID: ${TELEGRAM_CHAT_ID}
-      UMAMI_API_URL: http://umami:3000
-      UMAMI_USERNAME: ${UMAMI_USERNAME:-admin}
-      UMAMI_PASSWORD: ${UMAMI_PASSWORD}
-      DATABASE_URL: postgresql://postgres:${POSTGRES_PASSWORD:-manacore123}@postgres:5432/manacore_auth
-    ports:
-      - "3300:3300"
-    healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://127.0.0.1:3300/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 40s
-
   # ============================================
   # Matrix Synapse (Homeserver) - DSGVO-konform
   # ============================================
@@ -1420,10 +1388,10 @@ services:
       - WATCHTOWER_POLL_INTERVAL=300
       - WATCHTOWER_CLEANUP=true
       - WATCHTOWER_INCLUDE_STOPPED=false
-      - WATCHTOWER_NOTIFICATIONS=shoutrrr
-      - WATCHTOWER_NOTIFICATION_URL=telegram://${TELEGRAM_BOT_TOKEN}@telegram?chats=${TELEGRAM_CHAT_ID}
-      - WATCHTOWER_NOTIFICATION_REPORT=true
-      - WATCHTOWER_NOTIFICATION_TEMPLATE={{- if .Report -}}{{- with .Report -}}{{- if or .Updated .Failed -}}🐳 ManaCore Watchtower{{- if .Updated }} | ✅ Updated:{{range .Updated}} {{.Name}}{{end}}{{- end -}}{{- if .Failed }} | ❌ Failed:{{range .Failed}} {{.Name}}{{end}}{{- end -}}{{- end -}}{{- end -}}{{- end -}}
+      # Notifications disabled (Telegram removed)
+      # Configure Matrix notifications if needed:
+      # - WATCHTOWER_NOTIFICATIONS=shoutrrr
+      # - WATCHTOWER_NOTIFICATION_URL=matrix://user:password@matrix.mana.how:8008/!roomid:mana.how
 
 # ============================================
 # Volumes