Document Telegram env vars in .env.example

.env.example

@@ -152,6 +152,12 @@ PINTEREST_CLIENT_ID=
 PINTEREST_CLIENT_SECRET=
 PINTEREST_CLIENT_REDIRECT="${APP_URL}/accounts/pinterest/callback"
 
+# Telegram (single shared bot — create one via https://t.me/BotFather)
+# After setting these, run: php artisan telegram:set-webhook
+TELEGRAM_BOT_TOKEN=
+TELEGRAM_BOT_USERNAME=
+TELEGRAM_WEBHOOK_SECRET=
+
 # AI Services
 OPENAI_API_KEY=
 ANTHROPIC_API_KEY=
@@ -196,6 +202,7 @@ NIGHTWATCH_TOKEN=
 # PINTEREST_ENABLED=true
 # MASTODON_ENABLED=true
 # BLUESKY_ENABLED=true
+# TELEGRAM_ENABLED=true
 
 # Media Services
 UNSPLASH_ACCESS_KEY=