Lead capture pages + follow-up email sequence

- /join/<token>[?v=angle] now serves a capture page (email first, wallet
  later) with angle-matched hook copy, sponsor line, worked-example ledger,
  how-it-works, live package ladder, and per-angle og tags (og:url keeps ?v=).
  The sponsor cookie is set exactly as before; ?v= is remembered and stored
  on the account as joined_via (shown in admin Members).
- drip.js: 4-step getting-started sequence (24h/48h/96h/168h) queued when a
  free account is created with the pre-checked opt-in; ticker every 10 min;
  signed /unsubscribe link in every email; MySQL + JSON storage.
- Admin > Settings: edit the sequence as JSON, reset to defaults, send any
  step to the admin inbox; Overview shows follow-ups in flight.

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

chatbot.js

@@ -56,6 +56,7 @@ function systemPrompt() {
 FACTS:
 - Free to join with email only (6-digit code sign-in, no passwords). Wallet appears only at purchase or payout activation. Every new member gets a small welcome batch of ad credits — unlocked by the WELCOME TOUR on first sign-in: they visit their upline's line-banner sites (up to 3, 10 seconds each — the same 3 levels the contract pays), then claim the credits. Members with no upline banners get the credits instantly.
 - PROMO TOOLS (Members > Promo tools, pill menu): Social posts for X/Facebook/LinkedIn/Telegram-WhatsApp with post/share buttons; Text a friend (5 SMS-sized messages with Text it / WhatsApp / Telegram / Copy); Email swipes (short, standard, long, follow-up); Banners in every standard ad size plus 1080x1080, 1080x1920 and 1280x720 (download or copy URL); the member's Banner wall link; an Objection handling bank (truth + ready-to-send reply); a Videos tab (hook videos in production). Every piece carries the member's invite link; angle links add ?v=instant|adspend|free|ledger. Members who want copy in their own voice can use mybrandedvoice.com.
+- INVITE PAGES: a member's link instantadpay.com/join/<username> opens a lead-capture page (email first, wallet later); add ?v=instant|adspend|free|ledger|two for an angle-matched headline. New free members get a short getting-started email series over the first week (unsubscribe link in every email; the admin edits the sequence in /admin > Settings).
 - LINE BANNER (free, set in Profile): every member can set a destination URL (must allow framing) plus an optional banner image. It is shown to their next THREE levels of new members during welcome tours (position 1 for directs, 2, 3 below), and on their public BANNER WALL at /wall/<username> — a shareable page showing their line ladder with their join link. Free viral traffic that compounds as the team grows; no credits spent.
 - Ad packages: Micro $5/500 credits, Activation $20/2,000, Builder $50/5,500, Growth $100/12,000, Leader $250/32,500. Dollar-priced, settled in POL (Polygon) at the live Chainlink rate. 1 credit = 1 cent of ad delivery.
 - Live formats: display banners (per impression), text ads (per impression), full-screen LOGIN ADS (per day: right after a member signs in they land on a sponsor interstitial — they click "Open Ad", the advertiser's page opens in a NEW tab, a countdown runs on the interstitial, and at zero a "Go to dashboard" button appears. Just a CTA link is enough; an optional banner image can be the clickable creative. No framing requirement since it opens in its own tab), WATCH-TO-EARN VIDEO ADS (advertiser uploads an MP4/WebM or gives a direct https .mp4/.webm link and picks a required watch length — 10s/30s/60s — which sets the per-view price; viewers watch in an escape-proof player under Earn credits > Watch videos, the watch time is enforced on the server clock, and they earn credits per completed watch; you never see your own videos), and solo ads. Banner ads also require a size (standard IAB sizes like 728x90, 300x250). Coming: featured rotation with disclosed rotation size, verified-visit packs.