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

provider/coinank/coinank_api/kline_test.go

@@ -27,10 +27,10 @@ func TestKlineDaily(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	t.Log("=== BTCUSDT 日线 K线数据 (coinank_api 免费接口) ===")
+	t.Log("=== BTCUSDT daily K-line data (coinank_api free endpoint) ===")
 	for i, k := range resp {
 		startTime := time.UnixMilli(k.StartTime).Format("2006-01-02 15:04:05")
-		t.Logf("\n[%d] 时间: %s", i, startTime)
+		t.Logf("\n[%d] Time: %s", i, startTime)
 		t.Logf("    Open:     %.2f", k.Open)
 		t.Logf("    High:     %.2f", k.High)
 		t.Logf("    Low:      %.2f", k.Low)
@@ -39,15 +39,15 @@ func TestKlineDaily(t *testing.T) {
 		t.Logf("    Quantity: %.4f (k[7])", k.Quantity)
 		t.Logf("    Count:    %.0f (k[8])", k.Count)
 
-		// 计算验证
+		// Calculation verification
 		if k.Close > 0 && k.Volume > 0 {
-			t.Logf("    --- 验证 ---")
+			t.Logf("    --- verification ---")
 			t.Logf("    Volume × Close = %.2f", k.Volume*k.Close)
 			t.Logf("    Quantity / Close = %.4f", k.Quantity/k.Close)
 		}
 	}
 
-	// 打印原始 JSON
+	// Print raw JSON
 	res, _ := json.MarshalIndent(resp, "", "  ")
-	fmt.Printf("\n原始 JSON:\n%s\n", res)
+	fmt.Printf("\nRaw JSON:\n%s\n", res)
 }