fix: 精简配置页面月份入口

app/performance-survey/PerformanceSurveyAdminConfig.test.tsx

@@ -214,6 +214,19 @@ describe('PerformanceSurveyAdminConfig', () => {
     await waitFor(() => expect(onMonthChange).toHaveBeenCalledWith('2026-09'))
   })
 
+  test.each([
+    ['positions', '岗位管理'],
+    ['people', '人员分配'],
+    ['templates', '模板管理'],
+  ] as const)('%s 管理页面不显示月份查看入口', async (mode, heading) => {
+    const request = createRequest()
+    render(<PerformanceSurveyAdminConfig mode={mode} request={request} month="2026-07" />)
+
+    await waitFor(() => expect(screen.getByRole('heading', { name: heading })).toBeInTheDocument())
+    expect(screen.queryByLabelText('查看月份')).not.toBeInTheDocument()
+    expect(request).toHaveBeenCalledWith(`/admin/config?month=2026-07&scope=${mode}`)
+  })
+
   test('岗位编辑产生 dirty 状态并保护岗位切换', async () => {
     const request = createRequest()
     const onDirtyChange = jest.fn()

app/performance-survey/PerformanceSurveyAdminConfig.tsx

@@ -549,15 +549,17 @@ export function PerformanceSurveyAdminConfig({
           </h2>
           {dirty && <StatusDot label="未保存" tone="warning" />}
         </div>
-        <label className="flex items-center gap-2 text-[12px] font-semibold text-[#5f5e5e]">
-          查看月份
-          <input
-            type="month"
-            value={month}
-            onChange={(event) => void changeMonth(event.target.value)}
-            className="h-11 rounded border border-[#c2c6d8] px-3 text-[13px] font-semibold text-[#1a1c1c] outline-none focus:border-[#0050cb] focus:ring-2 focus:ring-[#dbe6ff]"
-          />
-        </label>
+        {mode === 'overview' && (
+          <label className="flex items-center gap-2 text-[12px] font-semibold text-[#5f5e5e]">
+            查看月份
+            <input
+              type="month"
+              value={month}
+              onChange={(event) => void changeMonth(event.target.value)}
+              className="h-11 rounded border border-[#c2c6d8] px-3 text-[13px] font-semibold text-[#1a1c1c] outline-none focus:border-[#0050cb] focus:ring-2 focus:ring-[#dbe6ff]"
+            />
+          </label>
+        )}
       </div>
       {notice && (
         <div role="status" aria-live="polite" className="border-b border-[#b3c5ff] bg-[#f8faff] px-4 py-3 text-[13px] font-semibold text-[#0050cb]">