fix(analytics): never mix paper + live P&L; settings live-switch copy

Money-safety/accuracy bug: analytics computed total P&L, win rate, drawdown,
and every metric over ALL trades regardless of is_paper. A user who tried
paper mode then went live saw simulated and real P&L summed into one number
on the page whose entire purpose is 'did the bot make REAL money'.

Now: split trades by is_paper. Default to LIVE. A Live/Paper toggle appears
only when the wallet has both; otherwise auto-pick whichever exists. Paper
view shows a prominent 'SIMULATED — not real-money results' banner. All
metrics derive from the selected mode's trades only.

Also: BotConfigPanel handleUpgradeToLive copy now states Auto-Trade is forced
OFF on the paper→live switch (matches backend subscribe.py safety reset).

tsc + next build clean.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/[locale]/methodology/page.tsx

@@ -223,7 +223,7 @@ SHORT_INTENT + SHORT_ACTION => ALIGNMENT`,
     heroTitle: 'Signal Methodology',
     heroSubtitle: 'How each engine works, from raw input to trading decision',
     intro:
-      'Trump Alpha is not one monolithic strategy. It is a stack of six independent engines, each with its own data source, trigger logic, and failure mode. This page documents the live production logic rather than a simplified marketing summary.',
+      'Endorphin runs Trump Alpha as a research project, not a marketing funnel. It is not one monolithic strategy — it is a stack of six independent engines, each with its own data source, trigger logic, and failure mode. This page documents the live production logic, not a simplified pitch.',
     sections: [
       {
         tag: 'Signal 1 · Real-time event',