Fix address hallucination and duplicate status messages

- answerFor returning '' (intentionally blank) was treated as falsy,
  falling through to AI which fabricated "123 Main Street". Now
  empty string skips the field without triggering AI or reporting unknown.
- status.mjs was printing to stdout AND sending via Telegram, causing
  OpenClaw to relay a duplicate plain-text copy. Now only prints to
  stdout when Telegram isn't configured.

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

status.mjs

@@ -267,9 +267,11 @@ if (jsonMode) {
 } else {
   const report = formatReport(status);
   const settings = loadConfig(resolve(__dir, 'config/settings.json'));
-  // Always send via Telegram directly if configured (so markdown renders)
+  // Send via Telegram directly if configured (so markdown renders)
   if (settings.notifications?.bot_token && settings.notifications?.telegram_user_id) {
     await sendTelegram(settings, report);
+    // Don't also print to stdout — OpenClaw would relay it as a duplicate plain-text message
+  } else {
+    console.log(report);
   }
-  console.log(report);
 }