Support local html files (file://)

[Joopsnijder]

I want to use the tool for testing purposes in such a way that coding agents can 'see' the output of generated HTML files. But, I get an error when referencing a local HTML file that starts with file://

 File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/site-packages/playwright/_impl/_connection.py", line 559, in wrap_api_call
    raise rewrite_error(error, f"{parsed_st['apiName']}: {error}") from None
playwright._impl._errors.Error: Page.goto: net::ERR_NAME_NOT_RESOLVED at http://file///Users/joopsnijder/Projects/owasp_agentic_auditor/docs/audit/owasp_agentic_top_10_agent_20251220_213653/owasp_agentic_top_10_agent_20251220_213653.html
Call log:
  - navigating to "http://file///Users/joopsnijder/Projects/owasp_agentic_auditor/docs/audit/owasp_agentic_top_10_agent_20251220_213653/owasp_agentic_top_10_agent_20251220_213653.html", waiting until "load"