refactor: 移除四所统计分析页交易日历

删除日历 UI、bootstrap 与 /api/stats/calendar 注册；保留日/周/月统计表。内照明心档案日历不受影响。

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

instance_embed_context_lib.py

@@ -81,9 +81,4 @@ def trade_records_summary(conn, start_bj: str, end_bj: str, tr_ts: str) -> dict[
 
 
 def minimal_stats_bundle(reset_hour: int) -> dict[str, Any]:
-    return {
-        "stats_reset_hour": reset_hour,
-        "segments": [],
-        "initial_calendar": None,
-        "calendar_bootstrap_json": None,
-    }
+    return {"stats_reset_hour": reset_hour, "segments": []}