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>

components/trades/BotConfigPanel.tsx

@@ -304,7 +304,7 @@ export default function BotConfigPanel() {
     if (!address) return
     const ok = await confirmSign({
       label: 'Switch to live trading',
-      description: 'Your subscription will change from paper mode to live. No trade opens immediately — you still need to add a Hyperliquid API key and enable a signal module before the bot can act.',
+      description: 'Your subscription will change from paper mode to live. For your safety, Auto-Trade is turned OFF on this switch — you must re-enable it explicitly while live. No trade opens immediately; you still need to add a Hyperliquid API key first.',
       danger: true,
     })
     if (!ok) return