Get HTML trust report for an evaluation.
Returns the HTML content directly for browser viewing. HTML reports are automatically generated when evaluations complete.
Args: evaluation_id: UUID of the evaluation team_id: Team ID that owns this evaluation claims: JWT claims with user and team info report_storage: Report storage adapter
Returns: HTML response with the report content
Raises: HTTPException: 401 if unauthorized, 403 if no permission, 404 if report not found