KOL count: 29 → 25 across marketing/SEO copy

Backend KOL_FEEDS trimmed from 29 to 25 (dead feeds removed).
Sync all hardcoded count mentions:
- layout.tsx JSON-LD, page.tsx (metric + comparison + copy)
- kol/page.tsx, KolPageClient.tsx ("and 26 more" → "and 22 more")
- glossary/page.tsx, opengraph-image.tsx
- public/llms.txt, llms-full.txt
- drop removed KOLs (Dragonfly Capital, Nic Carter) from named lists

Bundles other in-flight frontend work already in the working tree.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/opengraph-image.tsx

@@ -153,7 +153,7 @@ export default function OGImage() {
         >
           {[
             { v: '<3s', l: 'post → position' },
-            { v: '19', l: 'KOL feeds' },
+            { v: '25', l: 'KOL feeds' },
             { v: '$0', l: 'platform fee' },
           ].map((s) => (
             <div key={s.l} style={{ display: 'flex', gap: 10, alignItems: 'baseline' }}>