fix(HEL-494): 日K默认45根并修复问天行业0/205覆盖

悬浮窗和详情页只画最近45个交易日，中枢仍保留250日历史。盘后缺sw_daily时保留成分日线内核，外显走免费申万；成分行情改为全市场快照+分页，不再截成前60只。

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

xiaobai-datahub/tests/test_realtime_intraday.py

@@ -219,6 +219,18 @@ class MarketQuotesTests(unittest.TestCase):
             payload = self.api.handle("/v1/quotes/latest", {"codes": ["600000.SH"]})
             mocked.return_value.fetch_market_quotes.assert_not_called()
         self.assertEqual(payload["data"][0]["ts_code"], "600000.SH")
+        self.assertEqual(payload["meta"]["source"], "eastmoney:ulist")
+
+    def test_named_quotes_page_beyond_sixty_codes(self) -> None:
+        codes = [f"{index:06d}.SZ" for index in range(70)]
+        def fake_fetch(chunk):
+            return [{"ts_code": code, "close": 10, "pre_close": 9} for code in chunk]
+
+        with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked:
+            mocked.return_value.fetch_quotes.side_effect = fake_fetch
+            payload = self.api.handle("/v1/quotes/latest", {"codes": [",".join(codes)]})
+        self.assertEqual(mocked.return_value.fetch_quotes.call_count, 2)
+        self.assertEqual(len(payload["data"]), 70)
 
     def test_market_unavailable_stays_source_error(self) -> None:
         with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked: