Close the conversion loop: member ID submission with Hermes Telegram notify

- Start page step 6 is now a bold gold-highlighted "Submit your NEW RM
  Circle ID" form with larger step numbers throughout; captures the
  sponsor the visitor was shown at join time.
- POST /api/public/submit-id: validates numeric ID, dedupes, stores on
  the volume, records a per-source "purchase" analytics event, fires a
  BeMob postback (txid=purchase-<clickid>) to close paid campaigns, and
  posts the new ID + sponsor + source to the configured Telegram chat
  (MB Hermes pattern). Rate-limited.
- Admin: Member ID Submissions table, "Confirmed joins" tile, and
  Telegram bot token / chat ID settings.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

public/start.html

@@ -11,7 +11,7 @@
 <article class="instruction"><div class="num">3</div><div><h3>Fund your wallet with POL</h3><p>Premium entry is <strong><span id="entryPol2">362</span> POL</strong>. Keep a small additional POL balance available for network gas. POL's USD value changes with the market.</p></div></article>
 <article class="instruction"><div class="num">4</div><div><h3>Use the current team sponsor</h3><p>Confirm that the sponsor ID shown by the RM Circle dApp matches <strong>ID <span id="sponsorIdInline">—</span></strong> before completing the transaction.</p></div></article>
 <article class="instruction"><div class="num">5</div><div><h3>Select Premium and review the transaction</h3><p>Read the wallet transaction before signing. Never share your Secret Recovery Phrase or seed words with this site, a sponsor, or a dApp.</p></div></article>
-<article class="instruction"><div class="num">6</div><div><h3>Tell the team when you're in</h3><p>Once your position is confirmed, let the team know your new RM Circle ID and sponsor ID so your placement can be mapped correctly.</p></div></article></div>
+<article class="instruction" style="border-color:var(--gold);background:rgba(243,190,67,.05)"><div class="num" style="background:var(--gold);color:#071421;border-color:var(--gold)">6</div><div><h3>Submit your NEW RM Circle ID here</h3><p>After your purchase confirms, the RM Circle dApp shows your <strong>new member ID</strong>. Type it below and hit submit — this tells the team you're in, maps your placement, and puts you in line for the rotation that gets <strong>your</strong> 2.</p><form id="idSubmitForm" style="display:flex;gap:8px;margin-top:12px;flex-wrap:wrap"><input name="newId" class="input" inputmode="numeric" pattern="[0-9]{1,10}" maxlength="10" placeholder="Your NEW RM Circle ID (numbers only)" required style="flex:1;min-width:200px"><button class="btn btn-primary">Submit My ID →</button></form><div id="idSubmitMsg" style="margin-top:10px;font-size:14px"></div></div></article></div>
 <div class="callout" style="margin-top:16px"><strong>What happens next:</strong> get exactly 2 directs, retire your qualified referral link, help your 2 get their 2, and upgrade with earned POL when practical. The goal is depth and duplication—not endless directs on one link.</div>
 <div class="callout warning" style="margin-top:12px"><strong>Risk reminder:</strong> participation involves cryptocurrency and smart-contract risk. No income is guaranteed. Use only funds you can afford to lose.</div><div id="supportBox" class="notice" style="margin-top:12px"></div><div id="supportLinkWrap" class="hidden" style="margin-top:10px"><a id="supportLink" class="btn btn-secondary" target="_blank" rel="noopener noreferrer">Open Team Support ↗</a></div></section></div>
 <figure class="roadmap-figure"><a href="/roadmap.webp" target="_blank" rel="noopener"><img src="/roadmap.webp" alt="RM Circle Premium Team Build Roadmap — core strategy, step-by-step guide, premium levels, and duplication formula" width="1149" height="1369" loading="lazy"></a><figcaption>The RM Circle is a team build project of the <strong>Crypto Team Build Network</strong>. This roadmap is the plan every member follows — tap to view full size.</figcaption></figure></div></main>