feat: add Telegram notification support and remove explicit ntfy/Gmail inputs

notify.sh

@@ -6,6 +6,8 @@ if [ "$STATUS" = "failure" ]; then
   ICON="❌"
 fi
 
+TEXT="$ICON *$TITLE*%0A%0A$MESSAGE"
+
 # ---- ntfy ----
 if [ -n "$NTFY_URL" ] && [ -n "$NTFY_TOPIC" ]; then
   curl -s -X POST "$NTFY_URL/$NTFY_TOPIC" \
@@ -26,4 +28,12 @@ if [ -n "$GMAIL_USER" ] && [ -n "$GMAIL_TO" ]; then
       -au"$GMAIL_USER" \
       -ap"$GMAIL_PASS" \
       "$GMAIL_TO"
+fi
+
+# ---- Telegram ----
+if [ -n "$TELEGRAM_BOT_TOKEN" ] && [ -n "$TELEGRAM_CHAT_ID" ]; then
+  curl -s -X POST "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \
+    -d chat_id="$TELEGRAM_CHAT_ID" \
+    -d parse_mode="Markdown" \
+    -d text="$TEXT"
 fi