feat: add USD/BRL and XAU/USD pipeline agents (Brief+Decio) with /api/usd/brief and /api/xau/brief routes

static/script.js

@@ -29,12 +29,61 @@ function switchAsset(asset, btnEl) {
     if (titleEl) titleEl.textContent = asset.toUpperCase();
 
     // Reload data for new asset
+    loadAssetBrief();
     loadConfig();
     loadPortfolio();
     loadMultiStratChart('live');
     addLog('SYS', `Ativo alterado para ${ASSET_LABELS[asset]} (${ASSET_PAIRS[asset]})`);
 }
 
+// ── Asset Brief Loader ───────────────────────────────────────────────────────
+function loadAssetBrief() {
+    if (currentAsset === 'btc') {
+        // BTC uses the existing pipeline via pollState
+        pollState();
+        return;
+    }
+
+    const apiMap = {
+        usd: '/api/usd/brief',
+        xau: '/api/xau/brief'
+    };
+
+    const api = apiMap[currentAsset];
+    if (!api) return;
+
+    fetch(api)
+        .then(r => r.json())
+        .then(data => {
+            if (data.error) {
+                addLog('SYS', `Erro ao carregar ${ASSET_LABELS[currentAsset]}: ${data.error}`);
+                return;
+            }
+            const brief = data.brief;
+            const decio = data.decio;
+
+            // Update brief agent card
+            const priceStr = brief.price
+                ? (brief.price > 1000 ? brief.price.toLocaleString('pt-BR', {minimumFractionDigits: 2}) : brief.price.toFixed(4))
+                : '-';
+            updateAgentUI('brief', {
+                status: 'done',
+                message: `${ASSET_PAIRS[currentAsset]}: ${priceStr}`
+            });
+
+            // Update decio agent card
+            updateAgentUI('decio', {
+                status: 'done',
+                message: `Decisão: ${decio.decision} (${decio.confidence}%)`
+            });
+
+            addLog('SYS', `${ASSET_LABELS[currentAsset]} | ${decio.decision} | Conf: ${decio.confidence}%`);
+        })
+        .catch(err => {
+            addLog('SYS', `Erro API ${currentAsset}: ${err.message}`);
+        });
+}
+
 // ── Init ─────────────────────────────────────────────────────────────────────
 document.addEventListener('DOMContentLoaded', () => {
     updateClock();
@@ -56,6 +105,12 @@ document.addEventListener('DOMContentLoaded', () => {
     loadPortfolio();
     loadActivityLog();
     updateStatus('Sistema operacional', 'online');
+    // Load asset-specific data
+    if (currentAsset === 'btc') {
+        pollState();
+    } else {
+        loadAssetBrief();
+    }
 });
 
 // ── Clock ─────────────────────────────────────────────────────────────────────