fix(dialogs): F03 证据弹窗同期间重复点击不再停留在加载中

- 第 0 页重复点击当前已选期间直接返回，不清空列表、不重复请求；
  第二页点击当前期间回到第一页并刷新
- 请求失败显示错误并提供“重试”按钮；空结果显示空态行而不是过期数据
- E2E 覆盖：重复点击、快速本期/基期切换、第二页切期间、失败重试、空列表

frontend/src/dialogs.tsx

@@ -1,5 +1,12 @@
 import { useEffect, useRef, useState } from "react";
-import { ChevronLeft, ChevronRight, Download, Save, Trash2, X } from "lucide-react";
+import {
+  ChevronLeft,
+  ChevronRight,
+  Download,
+  Save,
+  Trash2,
+  X,
+} from "lucide-react";
 import { api } from "./api";
 import {
   labels,
@@ -349,7 +356,8 @@ export function EvidenceDialog({
     }>(),
     [side, setSide] = useState<"current" | "baseline">("current"),
     [page, setPage] = useState(0),
-    [error, setError] = useState("");
+    [error, setError] = useState(""),
+    [reloadKey, setReloadKey] = useState(0);
   useEffect(() => {
     let active = true;
     setResult(undefined);
@@ -364,8 +372,14 @@ export function EvidenceDialog({
     return () => {
       active = false;
     };
-  }, [ds.id, ctx, side, page]);
+  }, [ds.id, ctx, side, page, reloadKey]);
   function selectSide(value: "current" | "baseline") {
+    if (value === side) {
+      // 重复点击当前期间：仅在不在第一页时回到第一页触发刷新，
+      // 同期间同页直接返回，避免清空列表后停在“加载中”。
+      if (page !== 0) setPage(0);
+      return;
+    }
     setResult(undefined);
     setPage(0);
     setSide(value);
@@ -401,7 +415,8 @@ export function EvidenceDialog({
         {user.role !== "admin" && <p>客户原始标识不包含在明细中。</p>}
         {error && (
           <p role="alert" className="error">
-            {error}
+            {error}{" "}
+            <button onClick={() => setReloadKey((n) => n + 1)}>重试</button>
           </p>
         )}
         <div className="table-scroll">
@@ -435,6 +450,11 @@ export function EvidenceDialog({
                   <td>{String(r.gross ?? "")}</td>
                 </tr>
               ))}
+              {result && result.rows.length === 0 && (
+                <tr>
+                  <td colSpan={3 + ds.dimensions.length}>本期范围内没有数据</td>
+                </tr>
+              )}
             </tbody>
           </table>
         </div>
@@ -776,7 +796,10 @@ export function FormulaExportDialog({
       );
       setDefinitions((items) =>
         [...items.filter((item) => item.id !== saved.id), saved].sort((a, b) =>
-          String(a.definition.name).localeCompare(String(b.definition.name), "zh-CN"),
+          String(a.definition.name).localeCompare(
+            String(b.definition.name),
+            "zh-CN",
+          ),
         ),
       );
       setSelectedDefinition(saved.id);

tests/e2e/workspace.spec.ts

@@ -30,7 +30,9 @@ test("桌面：真实导入、异常、下钻、证据、设置、Copilot、导
   });
   await uploaded;
   const dialog = page.getByRole("dialog");
-  await expect(dialog.getByRole("heading", { name: "确认导入字段" })).toBeVisible();
+  await expect(
+    dialog.getByRole("heading", { name: "确认导入字段" }),
+  ).toBeVisible();
   await dialog.getByRole("button", { name: "确认并导入" }).click();
   await expect(
     page.getByRole("heading", { name: "集团经营总览", exact: true }),
@@ -85,14 +87,27 @@ test("桌面：真实导入、异常、下钻、证据、设置、Copilot、导
   await expect(evidenceDialog).toContainText("1 条");
   await expect(evidenceDialog).toContainText("2026-08");
   await expect(evidenceDialog).toContainText("CSV");
-  await evidenceDialog.getByRole("button", { name: "基期", exact: true }).click();
+  await evidenceDialog
+    .getByRole("button", { name: "基期", exact: true })
+    .click();
   await expect(evidenceDialog).toContainText("2025-08");
   await evidenceDialog.getByLabel("关闭", { exact: true }).click();
   const evidenceOffsets: number[] = [];
+  let evidenceFailOnce = false;
+  let evidenceEmpty = false;
   await page.route("**/api/datasets/*/evidence", async (route) => {
     const request = route.request().postDataJSON() as { offset?: number };
     const offset = request.offset || 0;
+    if (evidenceFailOnce) {
+      evidenceFailOnce = false;
+      await route.fulfill({ status: 500, json: { error: "服务暂不可用" } });
+      return;
+    }
     evidenceOffsets.push(offset);
+    if (evidenceEmpty) {
+      await route.fulfill({ json: { total: 0, sheet: "CSV", rows: [] } });
+      return;
+    }
     const count = offset === 0 ? 50 : 1;
     await route.fulfill({
       json: {
@@ -111,10 +126,51 @@ test("桌面：真实导入、异常、下钻、证据、设置、Copilot、导
   });
   await page.getByLabel("查看医生A证据", { exact: true }).click();
   await expect(evidenceDialog).toContainText("第 1-50 条，共 51 条");
-  await evidenceDialog.getByRole("button", { name: "下一页", exact: true }).click();
+  await evidenceDialog
+    .getByRole("button", { name: "下一页", exact: true })
+    .click();
   await expect(evidenceDialog).toContainText("第 51-51 条，共 51 条");
   await expect(evidenceDialog).toContainText("2026-09");
   expect(evidenceOffsets).toEqual([0, 50]);
+  // F03 回归：第二页时重复点击当前期间应回到第一页并重新加载
+  await evidenceDialog
+    .getByRole("button", { name: "本期", exact: true })
+    .click();
+  await expect(evidenceDialog).toContainText("第 1-50 条，共 51 条");
+  expect(evidenceOffsets).toEqual([0, 50, 0]);
+  // F03 回归：第一页重复点击当前期间不清空列表、不重新请求、不停在“加载中”
+  await evidenceDialog
+    .getByRole("button", { name: "本期", exact: true })
+    .click();
+  await expect(evidenceDialog).toContainText("第 1-50 条，共 51 条");
+  await expect(evidenceDialog).not.toContainText("加载中");
+  expect(evidenceOffsets).toEqual([0, 50, 0]);
+  // F03 回归：快速本期/基期切换最终停留在当前期间的数据
+  await evidenceDialog
+    .getByRole("button", { name: "基期", exact: true })
+    .click();
+  await evidenceDialog
+    .getByRole("button", { name: "本期", exact: true })
+    .click();
+  await expect(evidenceDialog).toContainText("第 1-50 条，共 51 条");
+  await expect(evidenceDialog).not.toContainText("加载中");
+  // F03 回归：请求失败显示错误并可重试恢复
+  evidenceFailOnce = true;
+  await evidenceDialog
+    .getByRole("button", { name: "下一页", exact: true })
+    .click();
+  await expect(evidenceDialog).toContainText("服务暂不可用");
+  await expect(evidenceDialog).toContainText("加载失败");
+  await evidenceDialog.getByRole("button", { name: "重试" }).click();
+  await expect(evidenceDialog).toContainText("第 51-51 条，共 51 条");
+  // F03 回归：空结果显示空态而不是过期数据或加载中
+  evidenceEmpty = true;
+  await evidenceDialog
+    .getByRole("button", { name: "上一页", exact: true })
+    .click();
+  await expect(evidenceDialog).toContainText("本期范围内没有数据");
+  await expect(evidenceDialog).toContainText("共 0 条");
+  await expect(evidenceDialog).not.toContainText("加载中");
   await evidenceDialog.getByLabel("关闭", { exact: true }).click();
   await page
     .getByRole("navigation", { name: "分析路径" })
@@ -164,38 +220,53 @@ 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 }) => {