refactor: enhance Optuna backtesting framework, optimize orderbook filtering, and update database management utilities.

scratch/check_bs4.py

@@ -0,0 +1,23 @@
+from bs4 import BeautifulSoup
+import sys
+
+with open("templates/backtest.html", "r", encoding="utf-8") as f:
+    html = f.read()
+
+soup = BeautifulSoup(html, "html.parser")
+tab = soup.find(id="tab-tail")
+if not tab:
+    print("tab-tail not found!")
+    sys.exit(1)
+
+print("tab-tail children count:", len(list(tab.children)))
+card = tab.find(class_="card")
+if card:
+    print("card found in tab-tail")
+    print("card text length:", len(card.text))
+else:
+    print("card NOT found in tab-tail!")
+
+# Print the IDs of all tabs to see if any are swallowed
+tabs = soup.find_all(id=lambda x: x and x.startswith("tab-"))
+print("Found tabs:", [t.get('id') for t in tabs])