Add a Linux permission guide for running zig-ctap2 against USB security keys through hidraw.\n\nInclude:\n- how to recognize CTAP2_ERR_NOT_ACCESSIBLE\n- common udev/security-key package pointers by distro family\n- how to validate device enumeration without creating credentials\n- keep the guide scoped to hidraw access, not browser WebAuthn policy.
Add a Linux permission guide for running zig-ctap2 against USB security keys through hidraw.\n\nInclude:\n- how to recognize CTAP2_ERR_NOT_ACCESSIBLE\n- common udev/security-key package pointers by distro family\n- how to validate device enumeration without creating credentials\n- keep the guide scoped to hidraw access, not browser WebAuthn policy.