增加k线图

backend/app/scheduler.py

@@ -11,6 +11,7 @@ from .db import get_latest_snapshot, init_db, log_push, save_snapshot, was_pushe
 from .exceptions import BinanceRateLimitedError
 from .periods import get_today_period, get_yesterday_period, now_shanghai
 from .state import get_today_cache, set_today_cache
+from .kline_store import prefetch_symbols
 from .wecom import build_markdown, send_wecom_markdown
 
 logger = logging.getLogger(__name__)
@@ -53,6 +54,9 @@ async def job_finalize_yesterday() -> None:
         )
         save_snapshot("yesterday", start, end, items)
         logger.info("Yesterday snapshot saved: %d items", len(items))
+        syms = [x["symbol"] for x in items if x.get("symbol")]
+        if syms:
+            await prefetch_symbols(syms)
     except BinanceRateLimitedError as e:
         logger.error("Finalize yesterday rate limited %ss", e.retry_after_sec)
     except Exception as e:
@@ -113,6 +117,9 @@ async def job_refresh_today() -> None:
         save_snapshot("today", start, end, items)
         set_today_cache(meta)
         logger.info("Today cache refreshed: %d items", len(items))
+        syms = [x["symbol"] for x in items if x.get("symbol")]
+        if syms:
+            await prefetch_symbols(syms)
     except BinanceRateLimitedError as e:
         logger.error("Refresh today rate limited %ss — use cache", e.retry_after_sec)
         _restore_today_from_db()