Add detect-only hook registry

[1vivy]

Summary

• Add a small UEFI config-table marker to detect existing GBL protocol hooks before installing new wrappers.
• Fail closed on same-session reruns, including cross-mode reuse, and instruct hard reset before another boot-efi attempt.
• Add a lint guard to keep this PR detect-only and avoid hook uninstall/rollback machinery.

Validation

• git diff --check
• tests/045_mode_taxonomy_lint.sh
• tests/046_mode1_protocol_hook_lint.sh
• tests/047_cleanup_lint.sh
• tests/048_hook_registry_lint.sh
• ./scripts/build.sh --mode 0
• ./scripts/build.sh --mode 1

Notes

• This is the smaller alternative to PR Harden protocol hook lifecycle #20's full hook lifecycle cleanup.
• Hooks still intentionally remain active for successful chainloaded ABL / ABL FastbootLib.
• Hard reset remains the recovery boundary for stale Qualcomm UEFI session state.

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