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

api/handler_stats_full.go

@@ -0,0 +1,58 @@
+package api
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+// handleStatisticsFull returns the full set of computed performance metrics for
+// a single trader: win rate, profit factor, Sharpe ratio, max drawdown, and the
+// average win/loss amounts. These are derived from the trader's CLOSED positions
+// via store.Position().GetFullStatsByTraderFilters — the same computation the
+// strategy engine feeds to the AI, so the dashboard and the model see identical
+// numbers.
+//
+// The existing GET /statistics endpoint only returns cycle/position counts; this
+// endpoint exposes the richer trade-quality metrics the terminal dashboard needs.
+func (s *Server) handleStatisticsFull(c *gin.Context) {
+	_, traderID, err := s.getTraderFromQuery(c)
+	if err != nil {
+		SafeBadRequest(c, "Invalid trader ID")
+		return
+	}
+
+	trader, err := s.traderManager.GetTrader(traderID)
+	if err != nil {
+		SafeNotFound(c, "Trader")
+		return
+	}
+
+	store := trader.GetStore()
+	if store == nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Store not available"})
+		return
+	}
+
+	// Aggregate across the trader's historical IDs exactly like the position
+	// history endpoint (handler_order.go). One-click "NOFX Autopilot" relaunches
+	// create fresh trader rows, but the closed positions stay under the old
+	// generated IDs (which embed userID + "claw402"). Without this, a freshly
+	// relaunched Autopilot would report only the current incarnation's trades
+	// instead of its real lifetime history.
+	userID := c.GetString("user_id")
+	traderIDs := []string{trader.GetID()}
+	var traderIDPatterns []string
+	if strings.EqualFold(strings.TrimSpace(trader.GetName()), "NOFX Autopilot") && strings.TrimSpace(userID) != "" {
+		traderIDPatterns = append(traderIDPatterns, "%_"+userID+"_claw402_%")
+	}
+
+	stats, err := store.Position().GetFullStatsByTraderFilters(traderIDs, traderIDPatterns)
+	if err != nil {
+		SafeInternalError(c, "Get full statistics", err)
+		return
+	}
+
+	c.JSON(http.StatusOK, stats)
+}