v0.3.0

First stable release under the rauf name. Promotes 0.3.0-rc.2; the
0.3.0-rc.1 and 0.3.0-rc.2 sections below carry the full per-candidate detail.

Changed (BREAKING) — Ralph is now Rauf

• The tool was renamed from ralph to rauf: binary, the @rauf/* package
  scope, .rauf/ state dir, .rauf.json, RAUF.md, RAUF_ROOT,
  X-Rauf-Request, ~/.rauf/, and the RAUF_* loop signals. See
  MIGRATION.md.

Added

• rauf migrate <path> — in-place migration of a legacy ralph project to
  rauf, with --dry-run, --no-backup, --clean-backups, and --global.

Fixed

• Release binaries for x64 are built with Bun's -baseline runtime so they run
  on every x64 CPU; the previous builds required AVX2 and crashed with SIGILL
  on CPUs without it.

Full Changelog: v0.3.0-rc.2...v0.3.0