Create shared utility package

[artiphishle]

Summary

• establish @ankhorage/utility as a public, runtime-neutral Ankhorage package
• add explicit @ankhorage/utility/project and @ankhorage/utility/regex subpath exports
• add pure project-trait detection across dependencies, devDependencies, peerDependencies, runtime engines, and package-manager signals
• detect overlapping TypeScript, JavaScript, Bun, Node, React, React Native, Expo, and Next.js traits
• add reusable email/HTTP(S) URL-like patterns and predicates with documented semantics
• add focused tests for project detection and regex behavior
• enforce the 50-line function limit locally ahead of the shared devtools rule
• add standard Ankhorage package metadata, strict TypeScript configuration, devtools, Paradox, Knip, Changesets, CI, release workflow, README, AGENTS.md, changelog, and MIT license
• configure CI to run bunx @ankhorage/ankh doctor validate .

Motivation

This provides the shared foundation required by ankhorage/devtools#30 for automatic base / React / React Native-Expo ESLint profile detection. The project detection API returns composable traits so it can later also be reused by projects such as artiphishle/pkgviz without coupling the API to the devtools policy.

Validation

• strict TypeScript source-only compilation passed locally for the exported /project and /regex implementation
• repository/package structure was checked against the current ankhorage/doctor public-package validation requirements
• all implementation and test functions are kept below 50 lines
• full Bun build/lint/test/Knip/doctor validation is delegated to PR CI because Bun and outbound package access are unavailable in the execution container

Closes #1