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

scratch/playwright_test.py

@@ -0,0 +1,21 @@
+from playwright.sync_api import sync_playwright
+
+with sync_playwright() as p:
+    browser = p.chromium.launch(headless=True)
+    page = browser.new_page()
+    page.goto("http://127.0.0.1:5050/")
+    
+    # Click tail tab
+    page.click("a[data-tab='tail']")
+    page.wait_for_timeout(500)
+    
+    # Check if tab-tail is visible
+    display = page.evaluate("window.getComputedStyle(document.getElementById('tab-tail')).display")
+    print("tab-tail display:", display)
+    
+    # Dump HTML of tab-tail if display is block
+    if display == "block":
+        bounding_box = page.locator("#tab-tail").bounding_box()
+        print("tab-tail bounding box:", bounding_box)
+        
+    browser.close()