fix(crypto): lead the change with its sign so a down move is not "$-186.36"

src/crypto.mjs

@@ -488,7 +488,11 @@ function priceLine(snapshot, quote) {
   const bits = [bone(price(last, quote))];
   if (change) {
     const paint = changeTone(change.percent);
-    bits.push(paint(`${change.absolute >= 0 ? "+" : ""}${price(change.absolute, quote, { like: last })}`), paint(`(${pct(change.percent)})`));
+    // Sign the magnitude, don't let price() sign it: a signed price puts the
+    // minus after the currency mark ("$-186.36"), so a down move reads unlike
+    // the up move's "+$186.36". The sign leads, the way pct() already signs.
+    const signed = `${change.absolute >= 0 ? "+" : "-"}${price(Math.abs(Number(change.absolute)), quote, { like: last })}`;
+    bits.push(paint(signed), paint(`(${pct(change.percent)})`));
   }
   const feed = [
     snapshot?.delayed === false ? "live" : snapshot?.delayed === true ? "delayed" : null,

test/crypto.test.mjs

@@ -186,6 +186,20 @@ test("the report renders the live stamp, the score and the disclaimer", () => {
   assert.match(out, /Research aid, not advice\./);
 });
 
+test("a down move signs the change like the up move, mark and all", () => {
+  const render = (absolute, percent) => renderCrypto("report", {
+    symbol: "ETH/USD", quote: "USD",
+    snapshot: { latestTrade: { price: 3200.55 }, change: { absolute, percent } },
+  }, { columns: 88 }).replace(/\x1b\[[0-9;]*m/g, "");
+
+  const down = render(-186.363, -5.5);
+  assert.match(down, /-\$186\.36/, "the sign leads the currency mark, not follows it");
+  assert.doesNotMatch(down, /\$-186\.36/, "a currency mark must never sit after the minus");
+
+  const up = render(186.363, 5.5);
+  assert.match(up, /\+\$186\.36/, "an up move keeps its leading plus");
+});
+
 test("--limit on bars is honoured here, because upstream does not honour it", () => {
   // The API treats limit as a page size over its own window, so a renderer that
   // just printed everything would silently break the flag's promise.