traxsource: fixture HTML + bs4 dep + script refresh generi

requirements.txt

@@ -10,6 +10,7 @@ pyobjc-framework-AVFoundation>=10.0 ; sys_platform == "darwin"
 pythonnet==3.0.5 ; sys_platform == "win32"
 clr-loader==0.2.7.post0 ; sys_platform == "win32"
 curl_cffi>=0.9.0
+beautifulsoup4>=4.12.0
 
 # --- dev only ---
 pytest>=8.0.0