Base v0.4.4

Added

• Protected default branches by default during basectl repo configure, with
  --no-protect-default-branch for repositories that intentionally skip the
  Base-managed ruleset.
• Added Base-managed GitHub Project metadata configuration through
  basectl repo init, basectl repo configure, and the lower-level
  basectl gh project surface.
• Added diagnostic workflow guidance for preserving failure evidence and
  routing follow-up fixes.

Fixed

• Changed basectl repo configure to warn instead of fail when GitHub reports
  that default branch rulesets are unavailable for a private repository's plan.
• Made basectl test base package-aware so Homebrew-installed Base runs the
  packaged Python test layer and skips source-checkout-only BATS tests with
  clear guidance.