v0.9.1

Added

• truncate(len) method: Added truncate() to FixedStr and FixedStrBuf for shortening visible string length in-place.
• finalize_unsafe() method: for cases requiring direct construction without UTF‑8 validation.

Changed

• Updated crate-level and function-level docs for clarity, accuracy, and consistency with actual behavior.
• FixedStrBuf::finalize() now returns FixedStr directly (was Result), reflecting that finalize() only produces valid UTF‑8.
• Implemented From<FixedStrBuf<N>> for FixedStr<N> for ergonomic conversion from builder to fixed string.
• Improved descriptions for from_bytes, set_lossy, and other modifiers to better reflect truncation and null-termination behavior.

Removed

• FixedStr::as_hex() and FixedStr::hex_dump(): Removed from the core type to avoid side effects and formatting logic in core APIs.

  Hex formatting is still available via the fast_format_hex() and dump_as_hex() helper functions for manual use.

Fixed

• Corrected misleading note on FixedStr::new_const to reflect that UTF‑8 is now always respected, even at compile time.
• Corrected the conversion implementations for FixedStrBuf (from FixedStr and via TryFrom<&[u8]>) so that the effective length (up to the first null byte) is used rather than the full array capacity. This ensures that builder operations such as appending and truncating behave correctly.
• Corrected docblocks and comments referring to outdated runtime validation behavior.