v0.4.4

Fixed

• Decode 14-byte SLD file headers with complete frame dimensions and independent
  hotspots, preserving lower sprite pixels and window overlap.
• Inherit SLD layer pixels only when the delta bit is set; static shadow layers
  no longer accumulate silhouettes from earlier facings.
• Validate declared facing slots before selecting animation frames, including
  single-facing animated graphics. Invalid facings remain reported as skipped.
• Include DAT unit names, with snapshot fallback, in skipped and missing asset
  diagnostics, and identify the consumers of required assets.