fix: fill missing audience profile buckets

src/content/market/audience-profile-csv.ts

@@ -122,7 +122,7 @@ function readDistributionValue(
   return (
     readProfileDistributionItems(profile, key).find(
       (candidate) => candidate.label === label
-    )?.value ?? ""
+    )?.value ?? "0%"
   );
 }
 

tests/audience-profile-csv.test.ts

@@ -95,4 +95,59 @@ describe("audience-profile-csv", () => {
     expect(rowLine).not.toContain("request-failed");
     expect(rowLine).not.toContain("timeout");
   });
+
+  test("fills missing fixed distribution buckets with zero for successful profiles", () => {
+    const csv = buildAudienceProfileCsv([
+      {
+        profiles: {
+          audience: { status: "success" },
+          fans: { status: "success" },
+          longtimeFans: {
+            age: [
+              { label: "18-23", value: "11.1%" },
+              { label: "24-30", value: "33.3%" },
+              { label: "31-40", value: "55.6%" }
+            ],
+            cityTier: [
+              { label: "一线城市", value: "10%" },
+              { label: "二线城市", value: "20%" },
+              { label: "三线城市", value: "40%" },
+              { label: "四线城市", value: "30%" }
+            ],
+            crowd: [
+              { label: "精致妈妈", value: "30%" },
+              { label: "新锐白领", value: "20%" },
+              { label: "资深中产", value: "10%" },
+              { label: "都市蓝领", value: "20%" },
+              { label: "小镇中老年", value: "10%" },
+              { label: "小镇青年", value: "10%" }
+            ],
+            status: "success"
+          }
+        },
+        record: {
+          authorId: "123",
+          authorName: "达人 A",
+          status: "success"
+        }
+      } satisfies AudienceProfileExportRow
+    ]);
+
+    expect(readCsvValue(csv, "铁粉画像-41-50占比")).toBe("0%");
+    expect(readCsvValue(csv, "铁粉画像-50+占比")).toBe("0%");
+    expect(readCsvValue(csv, "铁粉画像-新一线城市占比")).toBe("0%");
+    expect(readCsvValue(csv, "铁粉画像-五线城市占比")).toBe("0%");
+    expect(readCsvValue(csv, "铁粉画像-都市银发占比")).toBe("0%");
+    expect(readCsvValue(csv, "铁粉画像-Z世代占比")).toBe("0%");
+  });
 });
+
+function readCsvValue(csv: string, header: string): string {
+  const [headerLine, rowLine] = csv.split("\n");
+  const headers = headerLine.split(",");
+  const values = rowLine.split(",");
+  const index = headers.indexOf(header);
+
+  expect(index).toBeGreaterThanOrEqual(0);
+  return values[index] ?? "";
+}