feat(analysis): 网页汇总表自定义列

- analyze 支持 custom_columns：白名单表达式树由服务端 Decimal 求值，
  自定义列进入汇总、分组行与明细（缺失保持不可用，不转零）
- 新增「选择网页自定义列」弹窗：从定义库（含共享）多选最多 10 列，
  应用后进入主分析表格与热力图；公式工作簿可一键导出网页已选列
- 请求去重纳入自定义列；Playwright 覆盖选择后显示与数值断言

tests/e2e/workspace.spec.ts

@@ -180,38 +180,53 @@ test("桌面：真实导入、异常、下钻、证据、设置、Copilot、导
   await page.route("**/formula-design", async (route) => {
     designCalls++;
     await route.fulfill({
-      json: designCalls === 1
-        ? { complete: false, questions: ["缺失值和零分母如何处理？"], column: null }
-        : {
-            complete: true,
-            questions: [],
-            column: {
-              name: "收入成本差",
-              meaning: "实际收入减成本",
-              scope: "所选分组与期间",
-              missing: "结果不可用（#N/A）；零分母不可用",
-              expression: {
-                operator: "subtract",
-                left: { metric: "revenue" },
-                right: { metric: "cost" },
+      json:
+        designCalls === 1
+          ? {
+              complete: false,
+              questions: ["缺失值和零分母如何处理？"],
+              column: null,
+            }
+          : {
+              complete: true,
+              questions: [],
+              column: {
+                name: "收入成本差",
+                meaning: "实际收入减成本",
+                scope: "所选分组与期间",
+                missing: "结果不可用（#N/A）；零分母不可用",
+                expression: {
+                  operator: "subtract",
+                  left: { metric: "revenue" },
+                  right: { metric: "cost" },
+                },
               },
             },
-          },
     });
   });
   await page.getByRole("button", { name: "生成公式工作簿" }).click();
   const formulaDialog = page.getByRole("dialog", { name: "生成公式工作簿" });
   await formulaDialog.getByRole("checkbox").check();
-  await formulaDialog.getByLabel("列计算描述").fill("新增收入成本差，缺失或零分母显示不可用");
+  await formulaDialog
+    .getByLabel("列计算描述")
+    .fill("新增收入成本差，缺失或零分母显示不可用");
   await formulaDialog.getByRole("button", { name: "发送描述" }).click();
   await expect(formulaDialog).toContainText("缺失值和零分母如何处理？");
-  await formulaDialog.getByLabel("列计算描述").fill("缺失项和零分母都按不可用处理");
+  await formulaDialog
+    .getByLabel("列计算描述")
+    .fill("缺失项和零分母都按不可用处理");
   await formulaDialog.getByRole("button", { name: "发送描述" }).click();
-  await formulaDialog.getByRole("button", { name: "确认并生成公式工作簿" }).click();
-  await expect(formulaDialog.getByRole("status")).toContainText("生成完成", { timeout: 30000 });
+  await formulaDialog
+    .getByRole("button", { name: "确认并生成公式工作簿" })
+    .click();
+  await expect(formulaDialog.getByRole("status")).toContainText("生成完成", {
+    timeout: 30000,
+  });
   const formulaDownload = page.waitForEvent("download");
   await formulaDialog.getByRole("button", { name: "下载公式工作簿" }).click();
-  expect((await formulaDownload).suggestedFilename()).toBe("traceiq-formula-analysis.xlsx");
+  expect((await formulaDownload).suggestedFilename()).toBe(
+    "traceiq-formula-analysis.xlsx",
+  );
   await formulaDialog.getByLabel("关闭").click();
 });
 test("手机：登录、总览、设置、Copilot 布局无横向溢出", async ({ page }) => {

tests/test_finance.py

@@ -85,6 +85,36 @@ def test_metrics_and_analysis_preserve_roi_refunds_and_distinct_customers(worksp
     assert unavailable["self_revenue"] == 0
 
 
+def test_analysis_computes_saved_custom_columns_in_summary_and_rows(workspace):
+    ds, member, *_ = workspace
+    column = {
+        "name": "收入成本差",
+        "meaning": "收入减成本",
+        "scope": "按分组计算",
+        "missing": "结果不可用（#N/A）；零分母不可用",
+        "expression": {
+            "operator": "subtract",
+            "left": {"metric": "revenue"},
+            "right": {"metric": "cost"},
+        },
+    }
+    result = analyze(
+        ds,
+        member,
+        {
+            "start": "2026-08",
+            "end": "2026-08",
+            "comparison": "yoy",
+            "group": "department",
+            "custom_columns": [column],
+        },
+        default_preferences(ds),
+    )
+    assert result["summary"]["custom_0"]["current"] == Decimal("45")
+    assert result["summary"]["custom_0"]["baseline"] == Decimal("90")
+    assert result["rows"][0]["values"]["custom_0"]["current"] == Decimal("60")
+
+
 def test_dataset_and_evidence_are_organization_and_department_scoped(workspace):
     ds, _, _, _, other_client = workspace
     url = f"/api/datasets/{ds.pk}"