Hashavatar 1.0.2

hashavatar 1.0.2

1.0.2 is an additive ergonomics and documentation release for hashavatar.

Added

• AvatarBuilder as a fluent high-level API for common SVG, raster, encoded
  output, and cache-key workflows.
• AvatarError as a unified high-level error type for builder-based code.
• AvatarIdentity::cache_key() and AvatarBuilder::cache_key() for stable
  opaque cache identifiers without exposing the raw identity digest.
• hashavatar::prelude with the common application-facing types.
• Optional serde feature for public style enums. AvatarIdentity remains
  intentionally non-serializable.
• AvatarStyleOptions::summary() and Display for human-readable UI/log
  labels.
• Runnable examples for builder-based SVG rendering and cache-key derivation.

Security And Compatibility

• The builder stores validation failures and returns them as Result values;
  invalid dimensions or namespace components do not panic.
• AvatarBuilder uses a redacted Debug implementation so accidental builder
  logging does not print the raw identity input.
• Cache keys are derived by hashing the internal digest under a separate
  cache-key domain. They are display-safe and opaque, but still correlate equal
  identities.
• Serde support is limited to public style enums. The identity digest type does
  not implement Serialize or Deserialize.
• No avatar visual fingerprints were intentionally changed.

Documentation

• Documented the AvatarSpec::new(width, height, seed) seed as a deterministic
  style variant, not a replacement for identity hashing.
• Updated README installation examples, builder guidance, cache-key guidance,
  dependency policy, security controls, and API summary for 1.0.2.

Verification

• Full release gate passed.
• Serde feature path passed.
• Package publish dry-run passed.