Hashavatar 0.11.0

hashavatar 0.11.0

0.11.0 polishes the visual layer model introduced in 0.10.0.

Changes

• Added explicit AvatarKind::supports_face_layers() support metadata.
• Documented that non-face families accept accessory/expression options but
  skip those layers deterministically.
• Updated SVG frame shapes so non-square shapes use clip paths, matching the
  raster renderer's transparent outside-frame masking behavior.
• Fixed malformed Paws-family SVG output where one toe-pad ellipse emitted a
  color value in the ry radius attribute instead of a numeric radius.
• Lowered glasses placement slightly for dog, robot, monster, ghost, wizard,
  and knight families.
• Tuned eyepatch, horns, bowtie, crown, hat, and headphones placement for
  families where those overlays were visibly off-center.
• Refreshed README guidance for the full layer model, single-accessory
  behavior, supported face-layer families, endpoint query mapping, and style
  recipes.
• Added tests for supported face-layer families, unsupported fallback families,
  SVG frame clipping, and SVG radius-attribute integrity.

Compatibility

Baseline AvatarOptions rendering is unchanged. Styled SVG output for
non-square frame shapes now clips content to the selected frame shape; this is
an intentional visual polish change for style-aware SVG callers.