fix: format business ability estimates

src/content/market/business-ability-client.ts

@@ -158,19 +158,19 @@ export function mapBusinessAbilityEstimateResponse(
   return {
     oneToTwenty: {
       expectedCpe: formatDecimal(readNumber(data?.cpe_1_20), 1),
-      expectedCpm: formatDecimal(readNumber(data?.cpm_1_20), 0),
+      expectedCpm: formatFixedDecimal(readNumber(data?.cpm_1_20), 1),
       expectedPlay,
       hotRate
     },
     overSixty: {
       expectedCpe: formatDecimal(readNumber(data?.cpe_60), 1),
-      expectedCpm: formatDecimal(readNumber(data?.cpm_60), 0),
+      expectedCpm: formatFixedDecimal(readNumber(data?.cpm_60), 1),
       expectedPlay,
       hotRate
     },
     twentyToSixty: {
       expectedCpe: formatDecimal(readNumber(data?.cpe_20_60), 1),
-      expectedCpm: formatDecimal(readNumber(data?.cpm_20_60), 0),
+      expectedCpm: formatFixedDecimal(readNumber(data?.cpm_20_60), 1),
       expectedPlay,
       hotRate
     }
@@ -203,7 +203,7 @@ function formatBasisPointRate(value: number | null): string {
 
 function formatDecimalRate(value: number | null): string {
   if (value === null) {
-    return "";
+    return "缺失";
   }
 
   return `${formatDecimal(value * 100, 0)}%`;
@@ -230,6 +230,14 @@ function formatDecimal(value: number | null, digits: number): string {
   return fixed.replace(/\.0+$/, "").replace(/(\.\d*?)0+$/, "$1");
 }
 
+function formatFixedDecimal(value: number | null, digits: number): string {
+  if (value === null || !Number.isFinite(value)) {
+    return "";
+  }
+
+  return value.toFixed(digits);
+}
+
 function readNestedNumber(
   data: Record<string, unknown> | null,
   objectKey: string,