feat: cream terminal redesign, English-only UI, autopilot launch fixes

- Redesign dashboard into a cream-paper + vermilion IBM Plex Mono terminal
  (live L2 order book, cost/liq map, WS K-line, signal matrix, orchestration
  topology, risk radar, execution log, current positions, equity curve)
- Convert all user-facing UI and backend strings/prompts from Chinese to
  English (multi-language retained, default English)
- Add /api/statistics/full endpoint + full-stats frontend wiring
- Fix Autopilot launch: reuse the existing trader instead of creating
  duplicates (eliminates repeat ~35s create cost and stale-trader 404s);
  launch sends 5m scan interval
- Fix unreadable toasts: cream theme with high-contrast text + per-type accent
- Silence background dashboard polls (getTraderConfig) to stop error-toast spam

mcp/payment/claw402.go

@@ -78,7 +78,7 @@ var claw402ModelEndpoints = map[string]string{
 	"gemini-3.1-pro": "/api/v1/ai/gemini/chat/3.1-pro",
 	// Kimi
 	"kimi-k2.5": "/api/v1/ai/kimi/chat/k2.5",
-	// Z.AI (智谱)
+	// Z.AI (Zhipu)
 	"glm-5":       "/api/v1/ai/zhipu/chat",
 	"glm-5-turbo": "/api/v1/ai/zhipu/chat/turbo",
 }