Correct spillover teaching across all site copy

The old copy claimed qualified links must be retired to avoid "extra
shallow legs" — factually wrong for this contract: extra signups on a
qualified link spill DOWNWARD (BFS) as depth, and the referrer keeps
earning the full entry reward on every signup with no cap at 2. Updated
the strategy flow, team-principle notice, strategy card, start-page
callout, chatbot (canned + AI prompt), training article, and the
qualified share card: the team play is still helping your 2 get their 2
(only own directs qualify a position), but continued personal promotion
is accurately described as paid depth-building, and spillover recipients
earn only when the spilled member upgrades — if qualified and leveled.

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

public/chat.js

@@ -27,7 +27,7 @@
     {k:['sponsor','current sponsor','who do i join under','placement','whose link','referral'],
      a:()=>{const s=sponsorInfo&&sponsorInfo.sponsor;return s?`The current team sponsor is <strong>ID ${esc(s.id)}${s.name?' ('+esc(s.name)+')':''}</strong> — always verify on the <a href="/start">Getting Started page</a> right before you join, because placements rotate as positions qualify. Don't use an old screenshot or saved link.`:`The current sponsor is always shown live on the <a href="/start">Getting Started page</a> — check there right before joining, because placements rotate as positions qualify.`}},
     {k:['qualified','qualification','2 directs','two directs','directs','retire'],
-     a:()=>`A position is <strong>qualified</strong> once it has exactly 2 directs. At that point we retire its referral link — no more directs on it — and shift the team's recruiting to its two positions below. That's what keeps the build growing in depth.`},
+     a:()=>`A position is <strong>qualified</strong> once it has 2 directs. From there the team's priority shifts down: help your 2 get <em>their</em> 2 using their own links — that's the only thing that qualifies them. Your own link keeps working after 2/2: every extra signup still pays your position the entry reward and spills downward to fill your leg with depth. Just remember spillover never qualifies the people below — their own directs do.`},
     {k:['spillover','spill over','spill','under me but not qualified','people under me','not my direct','passed over','missed payment','skipped','why am i not qualified'],
      a:()=>`<strong>Spillover</strong> happens when someone's sponsor already has both matrix slots full — the smart contract then places the new member in the next open slot further down, which can be under YOU. Spillover fills your matrix and sets up future upgrade payments to your position, but it does <strong>not</strong> count toward your qualification: only people who join using <em>your</em> ID are your directs. That's why you can see 2 under you and still show 1/2. And important: upgrade payments only stop at positions that are qualified (2 directs) AND at the required level — otherwise the payment passes you by to the next eligible upline. Check your position on your <a href="/my">Member Dashboard</a> — spillover placements are tagged there.`},
     {k:['level','levels','upgrade','scintilla','ascensus','fabrica','culmen','apex','fastigium','vertex','corona','8 levels'],