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/vergex/client.go

@@ -27,6 +27,7 @@ const (
 	SignalRankingPath          = "/api/v1/vergex/signal-ranking"
 	SignalLabPath              = "/api/v1/vergex/signal-lab"
 	CostLiquidationHeatmapPath = "/api/v1/vergex/cost-liquidation-heatmap"
+	FlowMarketsPath            = "/api/v1/vergex/flow-markets"
 )
 
 type Client struct {
@@ -128,6 +129,24 @@ func (c *Client) GetCostLiquidationHeatmap(ctx context.Context, q Query) (json.R
 	return c.doGET(ctx, CostLiquidationHeatmapPath, params)
 }
 
+// GetFlowMarkets fetches the Vergex net-flow market ranking via the paid
+// claw402 x402 endpoint. Params mirror the public API: chain (e.g. "mainnet"),
+// window (e.g. "1h"), and limit. The raw JSON is returned for the caller to
+// pass through — the response shape is owned by Vergex.
+func (c *Client) GetFlowMarkets(ctx context.Context, chain, window string, limit int) (json.RawMessage, error) {
+	params := url.Values{}
+	if v := strings.TrimSpace(chain); v != "" {
+		params.Set("chain", v)
+	}
+	if v := strings.TrimSpace(window); v != "" {
+		params.Set("window", v)
+	}
+	if limit > 0 {
+		params.Set("limit", fmt.Sprintf("%d", limit))
+	}
+	return c.doGET(ctx, FlowMarketsPath, params)
+}
+
 func addQueryDefaults(params url.Values, q Query, includeMarket bool) {
 	if includeMarket {
 		if q.MarketType != "" {