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]/page.tsx

@@ -15,11 +15,11 @@ export async function generateMetadata({ params }: OverviewPageProps): Promise<M
   const isZh = false  // i18n shelved — Chinese branches kept as dead code for future revival; see messages/zh.json
 
   const title = isZh
-    ? 'Trump Alpha 信号总览'
-    : 'Trump Alpha Signal Monitor'
+    ? 'Trump Alpha — 实时加密信号研究台'
+    : 'Trump Alpha — Live Crypto Signal Desk'
   const description = isZh
-    ? '实时查看 Trump Truth Social 信号、Macro Vibes 宏观氛围、KOL 观点和 talks-vs-trades 分歧，一页掌握核心加密信号。'
-    : 'Track Trump Truth Social signals, Macro Vibes (crypto macro regime), KOL calls, and talks-vs-trades divergence in one live crypto dashboard.'
+    ? 'Endorphin 研究台追踪四个先于市场共识的信号：Trump 帖子、BTC 宏观底部、资金费率极值，以及 KOL 言行偏离。每个信号公开且带时间戳。'
+    : 'Endorphin tracks four signals that move crypto before the crowd: Trump posts, BTC macro bottoms, funding-rate extremes, and what KOLs do vs say. Public and timestamped.'
   const path = `${siteUrl}/${locale}`
 
   return {