v0.4.4

Added

• wtcraft agent init initializes AGENTS.md as the canonical shared
  instruction file and makes CLAUDE.md import it with @AGENTS.md. The
  command is idempotent, preserves existing content, and works without Git.

Changed

• File-only project setup and maintenance commands no longer require a Git
  repository. init, patch, unpatch, lang, and migrate can operate in
  a plain directory; init --local still requires Git because it writes
  .git/info/exclude.

Fixed

• wtcraft new now reports a repository with no commits in its own terms and
  names the fix, instead of letting git's fatal: invalid reference surface.
  Because agent init works without a repository, running new right after a
  fresh git init is an ordinary path rather than a corner case.