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>

components/btc/MacroPanel.tsx

@@ -457,7 +457,7 @@ export default function MacroPanel() {
             label="Altcoin Season"
             value={ind.altcoin_season_index == null ? '—' : ind.altcoin_season_index.toFixed(0) + ' / 100'}
             tone={toneAltseason(ind.altcoin_season_index)}
-            hint="% of top-50 alts that beat BTC over the last 30 days. < 25 = Bitcoin season, 25–60 = mixed, 60–75 = alt strength building, ≥ 75 = altseason."
+            hint="% of top-50 alts that beat BTC over the last 90 days (blockchaincenter.net formula). < 25 = Bitcoin season, 25–60 = mixed, 60–75 = alt strength building, ≥ 75 = altseason."
             summary={altSay}
             activeIndex={altActive}
             thresholds={[
@@ -466,8 +466,8 @@ export default function MacroPanel() {
               { label: '60–75 alt strength', tone: 'up' },
               { label: '≥ 75 altseason', tone: 'up' },
             ]}
-            chartHref="https://www.coinglass.com/en/pro/i/alt-coin-season"
-            chartLabel="CoinGlass"
+            chartHref="https://www.blockchaincenter.net/altcoin-season-index/"
+            chartLabel="BlockchainCenter"
           />
           <MetricCard
             rank={3}