v0.0.6

Other

• add FORM/ILBM read + round-trip support
• replace never-match regex with semver_check = false
• migrate to centralized OxideAV/.github reusable workflows
• pin release-plz to patch-only bumps

Added

• ilbm module: read/round-trip support for FORM/ILBM (Amiga
  InterLeaved BitMap, 1986 Jerry Morrison spec). BMHD / CMAP / CAMG /
  BODY chunks; uncompressed and ByteRun1 (PackBits) BODY; 1..=8
  colour bitplanes; EHB (32→64-entry palette mirroring); HAM6 and HAM8
  with running-state channel modify ops; Masking::HasMask plane and
  Masking::HasTransparentColor alpha. Public API:
  parse_ilbm / encode_ilbm / IlbmImage / Bmhd / Camg /
  byterun1_{decode,encode}_row / expand_ham_row /
  expand_ehb_palette.
• New container registration "iff_ilbm" with .ilbm / .lbm
  extensions and a FORM....ILBM probe; demuxer emits one keyframe
  packet of RGBA pixels through a rawvideo stream.