Promo kit copy: tap to copy, paste on the board; the board's join link carries ?from=polhunter so IAP sets the return path

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

public/promo.html

@@ -71,9 +71,9 @@
   const L = encodeURIComponent(link);
   const posts = [
     { name: 'Short post', text: 'New thing I am playing with: PolHunter. You visit a site, find your code on the page, tap it to copy, paste it on your board, and a random drip of POL lands in your wallet. On chain, with a link to prove it. ' + link },
-    { name: 'Story post', text: 'I spent two minutes on a training page tonight, found a little glass coin at the bottom, typed the code, and 0.26 POL showed up in my wallet a minute later. That is PolHunter. Small drips, real chain, no catch beyond actually visiting the site. Free to start, you just need an InstantAdPay account and a wallet. ' + link },
+    { name: 'Story post', text: 'I spent two minutes on a training page tonight, found a little glass coin at the bottom, tapped the code, and 0.26 POL showed up in my wallet a minute later. That is PolHunter. Small drips, real chain, no catch beyond actually visiting the site. Free to start, you just need an InstantAdPay account and a wallet. ' + link },
     { name: 'Telegram / WhatsApp', text: '\u{1F3AF} PolHunter is live. Missions across our sites, one code to find per site, random POL drips paid straight to your wallet. The hiding place moves every day. Start here: ' + link },
-    { name: 'Email swipe', subject: 'A scavenger hunt that pays in POL', text: 'Hey,\n\nQuick one. I have been testing something called PolHunter.\n\nYou pick a mission, spend a couple of minutes on the site it names, and your personal code appears somewhere on the page. Type it in and a random drip of POL goes to your wallet, on Polygon, with a transaction link you can open.\n\nIt is free to start. You need an InstantAdPay account (free) and a wallet linked to it so the drips have somewhere to land.\n\nHave a look: ' + link + '\n\nNo promises about amounts. The pool is limited every day and the drips are random within the posted range. It is fun, it is real, and it takes a few minutes.\n\nTalk soon' },
+    { name: 'Email swipe', subject: 'A scavenger hunt that pays in POL', text: 'Hey,\n\nQuick one. I have been testing something called PolHunter.\n\nYou pick a mission, spend a couple of minutes on the site it names, and your personal code appears somewhere on the page. Tap it to copy, paste it on your board, and a random drip of POL goes to your wallet, on Polygon, with a transaction link you can open.\n\nIt is free to start. You need an InstantAdPay account (free) and a wallet linked to it so the drips have somewhere to land.\n\nHave a look: ' + link + '\n\nNo promises about amounts. The pool is limited every day and the drips are random within the posted range. It is fun, it is real, and it takes a few minutes.\n\nTalk soon' },
   ];
   document.getElementById('share').innerHTML = posts.map((p, i) => '<div class="card"><h3>' + esc(p.name) + '</h3>' + (p.subject ? '<p><b>Subject:</b> ' + esc(p.subject) + '</p>' : '') + '<textarea id="t' + i + '" rows="' + (p.subject ? 12 : 5) + '">' + esc(p.text) + '</textarea>'
     + '<div class="sharebtns"><button class="btn pol sm" data-copy="#t' + i + '">Copy</button>'

server.js

@@ -198,7 +198,7 @@ const server = http.createServer(async (req, res) => {
         const done = rewards.doneToday(me.memberId, me.wallet); const wdone = done; // today's finds, by member id or wallet
         return json(res, 200, { me: { memberId: me.memberId, username: me.username, wallet: me.wallet }, missions: missions.forMember(me.memberId).map(m => Object.assign(pubMission(m), { done: done.has(m.id) || wdone.has(m.id) })), drips: rewards.mine(me.memberId).slice(0, 20), faucet: { on: faucetOn }, pool: rewards.pool(), daily: rewards.daily(me.memberId),
           badges: social.badgesFor(me.memberId), badgeCards: (() => { const got = new Set(social.badgesFor(me.memberId).map(b => b.id)); const who = social.nameOf(me); return social.BADGES.map(b => ({ id: b.id, name: b.name, icon: b.icon, why: b.why, art: '/badges/badge-' + b.id + '.jpg', earned: got.has(b.id), page: got.has(b.id) ? SITE + '/b/' + who + '/' + b.id : null, image: got.has(b.id) ? SITE + '/badge-img/' + who + '/' + b.id + '.jpg' : null })); })(), rank: { week: social.rankOf(me.memberId, 'week'), month: social.rankOf(me.memberId, 'month'), all: social.rankOf(me.memberId, 'all') },
-          share: { link: social.shareLink(SITE, me), joinUrl: 'https://instantadpay.com/join/' + encodeURIComponent(String(me.username || me.memberId)) } });
+          share: { link: social.shareLink(SITE, me), joinUrl: 'https://instantadpay.com/join/' + encodeURIComponent(String(me.username || me.memberId)) + '?from=polhunter' } });
       }
       if (p === '/api/my/start' && req.method === 'POST') {
         const b = await readBody(req); const m = missions.get(String(b.missionId || '')); if (!m || !m.active) return json(res, 404, { error: 'That mission is not open.' });