feat(data): 财务/日线同步增量 + 新浪「两边一致」校验兜底 + 逐只进度

- financial 默认增量：按 A 股披露节奏判断已最新并跳过；--full 强制全量重拉
- Tushare fina_indicator 增加报告期窗口与 100 条/请求自动分页（修复老报告期静默截断）
- 新浪兜底收紧为校验兜底：两源重叠历史一致才导入缺失键，行标记 source=sina；
  财务可比字段取 eps/销售毛利率（ROE 两端口径不同不作依据），日线只比较最近重叠交易日
- CLI 输出逐只进度与导入内容描述（来源/行数/报告期与公告区间），失败股票留待重跑
- financial_indicator 增 source 列（迁移 d3f6c9a21b04）；新增一致性/分页/服务测试

backend/tests/test_sina_provider.py

@@ -125,9 +125,49 @@ class TestFinancial:
         assert float(row.eps) == 1.23
         assert float(row.roe) == 15.5
         assert float(row.net_profit) == 1230000000
+        assert row.source == "sina"  # 兜底行必须标记来源（与 Tushare 首选行区分）
         # FinancialIndicator 校验能通过 → 格式与 Tushare 一致
         assert row.model_dump()["eps"] is not None
 
+    def test_window_filter(self) -> None:
+        payload = json.dumps(
+            {
+                "result": {
+                    "data": {
+                        "report_date": [
+                            {"date_value": "2024-06-30"},
+                            {"date_value": "2024-03-31"},
+                        ],
+                        "report_list": {
+                            "2024-06-30": {
+                                "publish_date": "2024-08-31",
+                                "data": [{"item_title": "基本每股收益", "item_value": "1.23"}],
+                            },
+                            "2024-03-31": {
+                                "publish_date": "2024-04-27",
+                                "data": [{"item_title": "基本每股收益", "item_value": "0.5"}],
+                            },
+                        },
+                    }
+                }
+            },
+            ensure_ascii=False,
+        )
+
+        class _TwoResp:
+            def __enter__(self):
+                return self
+
+            def __exit__(self, *exc):
+                return False
+
+            def read(self):
+                return payload.encode("utf-8")
+
+        provider = SinaProvider(urlopen=lambda _req, **kw: _TwoResp())
+        rows = provider.get_financial("600519.SH", date(2024, 6, 30), date(2024, 6, 30))
+        assert [r.report_date for r in rows] == [date(2024, 6, 30)]
+
     def test_bad_structure_raises(self) -> None:
         class _BadResp(_FinResp):
             def read(self):