总览从在线客户端快照展示 ETH/BTC 报价，优先 live。

Co-authored-by: Cursor <cursoragent@cursor.com>

static/hub.js

@@ -566,6 +566,127 @@
     });
   }
 
+  function fmtQuotePx(n) {
+    const v = Number(n);
+    if (!Number.isFinite(v)) return "—";
+    const abs = Math.abs(v);
+    let digits = 2;
+    if (abs >= 10000) digits = 1;
+    else if (abs >= 1000) digits = 2;
+    else if (abs >= 1) digits = 2;
+    else digits = 4;
+    try {
+      return v.toLocaleString("en-US", {
+        minimumFractionDigits: digits,
+        maximumFractionDigits: digits,
+      });
+    } catch (e) {
+      return v.toFixed(digits);
+    }
+  }
+
+  function fmtQuoteSigned(n, isPct) {
+    const v = Number(n);
+    if (!Number.isFinite(v)) return "—";
+    const abs = Math.abs(v);
+    const digits = isPct ? 2 : abs >= 100 ? 1 : 2;
+    let body;
+    try {
+      body = abs.toLocaleString("en-US", {
+        minimumFractionDigits: digits,
+        maximumFractionDigits: digits,
+      });
+    } catch (e) {
+      body = abs.toFixed(digits);
+    }
+    const sign = v > 0 ? "+" : v < 0 ? "-" : "";
+    return sign + body + (isPct ? "%" : "");
+  }
+
+  function quoteDirClass(n) {
+    const v = Number(n);
+    if (!Number.isFinite(v) || v === 0) return "is-flat";
+    return v > 0 ? "is-up" : "is-down";
+  }
+
+  function snapshotTickers(row) {
+    const snap = (row && row.snapshot) || {};
+    const quotes = snap.quotes && typeof snap.quotes === "object" ? snap.quotes : {};
+    const list = quotes.tickers;
+    return Array.isArray(list) ? list : [];
+  }
+
+  function tickersHaveLast(tickers) {
+    return (tickers || []).some(function (t) {
+      return t && t.last != null && t.last !== "" && Number.isFinite(Number(t.last));
+    });
+  }
+
+  function pickQuoteSource(list) {
+    let best = null;
+    (list || []).forEach(function (row) {
+      if (!row || !row.online) return;
+      const tickers = snapshotTickers(row);
+      if (!tickersHaveLast(tickers)) return;
+      const mode = String((((row.snapshot || {}).instance || {}).mode) || "").toLowerCase();
+      const live = mode === "live" ? 1 : 0;
+      const pulled = String(row.pulled_at || ((row.snapshot || {}).quotes || {}).updated_at || "");
+      const cand = { tickers: tickers, name: row.name || "", live: live, pulled: pulled };
+      if (!best) {
+        best = cand;
+        return;
+      }
+      if (cand.live !== best.live) {
+        if (cand.live > best.live) best = cand;
+        return;
+      }
+      if (cand.pulled > best.pulled) best = cand;
+    });
+    return best;
+  }
+
+  function paintOverviewQuotes(list) {
+    const root = document.getElementById("overview-quotes");
+    if (!root) return;
+    const src = pickQuoteSource(list);
+    const tickers = src ? src.tickers : [];
+    ["ETH", "BTC"].forEach(function (base) {
+      const row = root.querySelector('.overview-quote-row[data-base="' + base + '"]');
+      if (!row) return;
+      let t = null;
+      for (let i = 0; i < tickers.length; i++) {
+        if (String((tickers[i] && tickers[i].base) || "").toUpperCase() === base) {
+          t = tickers[i];
+          break;
+        }
+      }
+      row.classList.remove("is-up", "is-down", "is-flat");
+      const lastEl = row.querySelector('[data-field="last"]');
+      const chgEl = row.querySelector('[data-field="change"]');
+      const pctEl = row.querySelector('[data-field="change_pct"]');
+      if (!t || t.last == null) {
+        row.classList.add("is-flat");
+        if (lastEl) lastEl.textContent = "—";
+        if (chgEl) chgEl.textContent = "—";
+        if (pctEl) pctEl.textContent = "—";
+        return;
+      }
+      row.classList.add(quoteDirClass(t.change));
+      if (lastEl) lastEl.textContent = fmtQuotePx(t.last);
+      if (chgEl) chgEl.textContent = fmtQuoteSigned(t.change, false);
+      if (pctEl) pctEl.textContent = fmtQuoteSigned(t.change_pct, true);
+    });
+    if (src && src.name) {
+      root.title =
+        "来自 " +
+        src.name +
+        (src.live ? " · live" : " · sim") +
+        " · 相对北京 08:00";
+    } else {
+      root.title = "暂无在线客户端报价 · 相对北京 08:00";
+    }
+  }
+
   async function refresh() {
     const status = document.getElementById("overview-status");
     const grid = document.getElementById("overview-grid");
@@ -577,6 +698,7 @@
       if (!d.ok) throw new Error(d.msg || "失败");
       const list = sortInstancesByMode(d.instances || []);
       renderOverviewSummary(list);
+      paintOverviewQuotes(list);
       if (!list.length) {
         grid.innerHTML =
           '<p class="muted">暂无启用实例,请先到「实例」添加.</p>';
@@ -611,6 +733,7 @@
         box.hidden = true;
         box.innerHTML = "";
       }
+      paintOverviewQuotes([]);
     }
   }