feat(cli): ship supported standalone axorc interface

[steipete]

Summary

• turn axorc into a discoverable standalone CLI with permissions, find, tree, raw, help, version, human output, and stable JSON mode
• fix app resolution by name/PID/focus, requested attribute values, descendant filtering, failure exit codes, raw compatibility, and terminal-safe rendering
• add signed universal artifact tooling, release verification docs, a Homebrew formula template that preserves the Developer ID signature, and CI packaging proof

Product decision

Standalone axorc is supported. Distribution contract: Developer ID-signed universal release binary through the official OpenClaw Homebrew tap. Source builds remain available; published binaries preserve a stable Accessibility/TCC identity.

This PR prepares v0.1.6. It does not publish a release or tap formula.

Proof

• swiftlint lint --strict
• swift test — 51 tests passed
• live Dock automation: descendant role filtering and app-name/requested-attribute query
• source-blind release-binary contract: 10/10 clauses, JSON failure paths, flat filtered tree
• isolated checkout with remote Commander: swift test
• universal arm64/x86_64 ad-hoc archive, signature, checksum, formula render, Ruby syntax, and shellcheck
• autoreview: clean

Related to #12.