Add separate kline.db and pre-seed small-account four-product K-lines on startup.

Co-authored-by: Cursor <cursoragent@cursor.com>

app.py

@@ -11,7 +11,7 @@ _legacy = os.path.join(_ROOT, "_legacy")
 if _legacy not in sys.path:
     sys.path.insert(0, _legacy)
 
-from modules.core.paths import ROOT, UPLOADS_DIR, DB_PATH, ensure_runtime_dirs, resolve_env_file
+from modules.core.paths import ROOT, UPLOADS_DIR, DB_PATH, KLINE_DB_PATH, ensure_runtime_dirs, resolve_env_file
 from locale_fix import ensure_process_locale
 
 ensure_process_locale()
@@ -60,7 +60,7 @@ from stats_engine import (
     load_stats_cache,
     refresh_stats_cache,
 )
-from kline_store import ensure_kline_tables
+from kline_store import connect_kline_db, ensure_kline_tables
 from kline_stream import kline_hub, sse_format
 from kline_chart import generate_review_kline_chart, fetch_market_klines, MARKET_PERIODS
 from market import (
@@ -456,7 +456,6 @@ def init_db():
             if not is_schema_migration_error(exc):
                 raise
             rollback_if_postgres(conn)
-    ensure_kline_tables(conn)
     init_strategy_tables(conn)
     from risk.account_risk_lib import ensure_account_risk_schema
     from recommend_store import ensure_recommend_tables
@@ -761,7 +760,6 @@ def check_order_plans():
 
 
 def check_key_monitors():
-    from db_conn import DB_PATH
     from key_monitor_lib import run_key_monitor_check
     from trading_context import get_trading_mode
 
@@ -770,7 +768,7 @@ def check_key_monitors():
         execute_fn = getattr(app, "_execute_key_breakout", None)
         run_key_monitor_check(
             conn,
-            db_path=DB_PATH,
+            db_path=KLINE_DB_PATH,
             get_trading_mode_fn=lambda: get_trading_mode(get_setting),
             send_wechat=send_wechat_msg,
             execute_breakout_fn=execute_fn,
@@ -799,11 +797,20 @@ def background_task():
 
 def start_background_threads():
     from trading_context import get_trading_mode
+    from modules.market.kline_seed import start_small_account_kline_seed
+
+    try:
+        kconn = connect_kline_db(KLINE_DB_PATH)
+        ensure_kline_tables(kconn)
+        kconn.close()
+    except Exception as exc:
+        app.logger.warning("kline db init: %s", exc)
+    start_small_account_kline_seed(db_path=KLINE_DB_PATH)
 
     threading.Thread(target=background_task, daemon=True).start()
     threading.Thread(
         target=lambda: kline_hub.worker_loop(
-            DB_PATH,
+            KLINE_DB_PATH,
             lambda sym, mc, sc: build_market_quote_payload(
                 sym, mc, sc, prefer_sina=False,
             ),
@@ -849,6 +856,7 @@ if os.getenv("QIHUO_INIT_ONLY") != "1":
         start_background_threads=start_background_threads,
         tz=TZ,
         db_path=DB_PATH,
+        kline_db_path=KLINE_DB_PATH,
         upload_dir=UPLOAD_DIR,
         open_types=OPEN_TYPES,
         exit_triggers=EXIT_TRIGGERS,