HEL-269: 完成月结锁账、撤演示数据与代码收尾

锁账后写保护与闭期补录留痕；重开须审批并按版本链再结；列表/导出改走真实 API。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

tests/test_company_transfers_page.py

@@ -31,8 +31,8 @@ class TransfersPageSourceContractTests(unittest.TestCase):
         self.assertIn('id="transferEvidenceDrawer"', html)
         self.assertIn("期间净变动", html)
         self.assertNotIn("本公司往来合计", html)
-        self.assertIn("design-system.css?v=6", html)
-        self.assertIn("app.js?v=13", html)
+        self.assertIn("design-system.css?v=7", html)
+        self.assertIn("app.js?v=15", html)
         # 侧栏顺序：流水管理 → 转账往来 → 往来确认
         flows = html.index('data-view="flows"')
         transfers = html.index('data-view="transfers"')
@@ -54,6 +54,10 @@ class TransfersPageSourceContractTests(unittest.TestCase):
         self.assertIn("initTransfers()", js)
         self.assertIn("期间净变动", js)
         self.assertIn("has_opening", js)
+        self.assertNotIn("FLOW_DEMO", js)
+        self.assertNotIn("COMPANY_FLOWS", js)
+        self.assertNotIn("IMP-DEMO", js)
+        self.assertNotIn("ledger-demo-manual-records", js)
         # 不得把「期末余额」写死为无期初时的标签
         self.assertNotRegex(js, r'netLabelForWindow[^{]+{[^}]*return "期末余额"')
 
@@ -112,10 +116,8 @@ class TransfersPageLayoutSmokeTests(unittest.TestCase):
             page = browser.new_page()
             for width in (360, 820, 1440):
                 page.set_viewport_size({"width": width, "height": 900})
-                page.set_content(
-                    html.replace('src="app.js?v=13"', 'src=""'),
-                    base_url=self.base,
-                )
+                page.route("**/app.js**", lambda route: route.abort())
+                page.goto(f"{self.base}/company.html")
                 page.evaluate(
                     """() => {
                       document.querySelectorAll('.app-view').forEach((el) => {