Honor DEVIN_COMPANION_DEFAULT_MODEL and explain Pro-only model failures - #19

Process completed with exit code 1.

Unexpected input(s) 'scanner_version', valid inputs are ['mode', 'plugin_dir', 'format', 'output', 'profile', 'config', 'baseline', 'trust_repository_policy', 'online', 'upload_sarif', 'sarif_category', 'write_step_summary', 'registry_payload_output', 'min_score', 'fail_on_severity', 'cisco_skill_scan', 'cisco_policy', 'install_source', 'install_cisco', 'submission_enabled', 'submission_score_threshold', 'submission_repos', 'submission_token', 'submission_labels', 'submission_category', 'submission_plugin_name', 'submission_plugin_url', 'submission_plugin_description', 'submission_author', 'pr_comment', 'pr_comment_style', 'pr_comment_max_findings']

Unexpected input(s) 'scanner_version', valid inputs are ['mode', 'plugin_dir', 'format', 'output', 'profile', 'config', 'baseline', 'trust_repository_policy', 'online', 'upload_sarif', 'sarif_category', 'write_step_summary', 'registry_payload_output', 'min_score', 'fail_on_severity', 'cisco_skill_scan', 'cisco_policy', 'install_source', 'install_cisco', 'submission_enabled', 'submission_score_threshold', 'submission_repos', 'submission_token', 'submission_labels', 'submission_category', 'submission_plugin_name', 'submission_plugin_url', 'submission_plugin_description', 'submission_author', 'pr_comment', 'pr_comment_style', 'pr_comment_max_findings']