Telegram companion bot, phase 1

New tgbot.js (raw Bot API, zero deps, private-chats only so the
group feeds are untouched): wallet-verified linking via dashboard
deep-link codes, personal payout + joined-on-your-link DMs, a
message bridge that delivers site messages natively in Telegram
with reply-to-answer routing (matrix-line permissions enforced by
the existing messages.js rules), and links/msg/help commands.
Webhook self-registers; secret derived from the token. Config key
companionBotToken overrides the feed bot token when Marty creates
a dedicated bot. Dashboard Messages panel gains Connect Telegram;
chatbot + AI prompt synced.

public/my.js

@@ -295,6 +295,23 @@
         st.textContent='Sent ✓';setTimeout(function(){loadMsgUI(d);},700);
       }catch(e){st.textContent='Send failed — try again.';sb.disabled=false;}
     });
+    // Telegram companion link — payout pings + team messages in Telegram
+    try{
+      const foot=document.createElement('div');
+      foot.style.cssText='margin-top:12px;padding-top:10px;border-top:1px solid var(--line, #24425d)';
+      foot.innerHTML='<button id="tgLinkBtn" class="btn btn-secondary btn-sm">✈️ Connect Telegram — payout pings + team chat</button><span class="micro" id="tgLinkNote" style="margin-left:8px"></span>';
+      el.appendChild(foot);
+      const tb=document.getElementById('tgLinkBtn');
+      tb.addEventListener('click',async function(){
+        tb.disabled=true;
+        try{
+          const r=await(await fetch('/api/public/tg-link',{method:'POST'})).json();
+          if(r.url){window.open(r.url,'_blank','noopener');document.getElementById('tgLinkNote').textContent='Tap START in Telegram to finish linking.';}
+          else document.getElementById('tgLinkNote').textContent=r.error||'Try again shortly.';
+        }catch(e){document.getElementById('tgLinkNote').textContent='Network hiccup — try again.';}
+        tb.disabled=false;
+      });
+    }catch(e){}
   }
   async function msgAuth(d){
     const err=document.getElementById('msgAuthErr');