Prompt user for Telegram id via @userinfobot instead of getUpdates

bootstrap.sh

@@ -177,27 +177,16 @@ else
   [ -n "$TG_TOKEN" ] || die "Telegram bot token required"
 
   echo ""
-  echo "  3. Now open your bot in Telegram and send it any message — say \"hi\"."
-  ask __continue "Press Enter once you've messaged the bot: "
-
-  say "Looking up your Telegram user id from getUpdates..."
-  USER_ID="$(curl -s "https://api.telegram.org/bot${TG_TOKEN}/getUpdates" | python3 -c "
-import json, sys
-try:
-    d = json.load(sys.stdin)
-    msgs = [u.get('message') or u.get('edited_message') or u.get('channel_post') for u in d.get('result', [])]
-    ids = [str(m['from']['id']) for m in msgs if m and m.get('from', {}).get('id')]
-    print(ids[-1] if ids else '')
-except Exception:
-    print('')
-")"
-  if [ -n "$USER_ID" ]; then
-    ok "Detected your Telegram user id: $USER_ID"
-  else
-    warn "Couldn't auto-detect. Enter it manually."
-    ask USER_ID "Telegram numeric user id: "
-    [ -n "$USER_ID" ] || die "Telegram user id required"
-  fi
+  echo "  3. Now message @userinfobot on Telegram. It replies with your numeric"
+  echo "     user id (looks like 123456789). Paste it below — this goes into"
+  echo "     TELEGRAM_ALLOWED_USERS so only you can DM the bot."
+  echo ""
+  ask USER_ID "Your Telegram numeric user id: "
+  [ -n "$USER_ID" ] || die "Telegram user id required"
+  case "$USER_ID" in
+    *[!0-9]*) die "User id must be numeric (got: $USER_ID)" ;;
+  esac
+  ok "Telegram user id: $USER_ID"
 fi
 
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