fix: skip Ctrl+C handling where Console.CancelKeyPress is unsupported - #6889

Process completed with exit code 1.

Action failed with error: Claude execution failed: result is_error:true

Claude result reported subtype success with is_error:true (run did not complete successfully)

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⚠️ SECURITY WARNING: Bypassing write permission check for thomhurst due to allowed_non_write_users='*'. This should only be used for workflows with very limited permissions.