删除实时行情、盘口深度和监控规则功能

Co-Authored-By: Claude <noreply@anthropic.com>

serve/backend/app/data_providers/base.py

@@ -21,7 +21,6 @@ class ProviderCapabilities:
     daily: bool = False
     adj_factor: bool = False
     minute: bool = False
-    realtime: bool = False
     financial: bool = False
 
 
@@ -59,10 +58,3 @@ class MarketDataProvider(Protocol):
         freq: str = "1m",
     ) -> pl.DataFrame:
         """Return normalized minute K rows. Implementations may return empty."""
-
-    def get_realtime(
-        self,
-        universes: list[str] | None = None,
-        symbols: list[str] | None = None,
-    ) -> pl.DataFrame:
-        """Return normalized realtime quotes. Implementations may return empty."""