Rustille v0.1.0

First release.

Added

• Braille encoder covering the whole U+2800–U+28FF block, with the
  standard dot-1..8 bit layout and exhaustive tests over all 256 masks.
• Canvas: a fixed-size drawing surface using exactly one bit per dot, with
  set/unset/toggle/get/clear/fill, Bresenham line, rectangle,
  circle and their filled variants, and clipping instead of wrapping.
• Image renderer with the pipeline decode → alpha compositing → fit/crop →
  resize → luminance → invert → dither → threshold → 2×4 packing → Unicode.
  PNG, JPEG, WebP, BMP, GIF and TIFF are supported, sniffed from the bytes.
• RenderOptions: width and height in characters, threshold, invert,
  dithering, colour mode, background, fit mode and cell aspect ratio, with a
  chainable builder and validation.
• Aspect-ratio handling via cell_aspect_ratio (default 2.0), so square
  images come out square in a normal terminal.
• Colour: plain text by default, plus ANSI 256 and 24-bit truecolour driven
  by the average colour of a cell's lit dots, emitted only when it changes.
• Dithering: none and Floyd–Steinberg, applied before cells are packed, with
  a data-driven kernel type so more algorithms need no API change.
• CLI rustille, with stdin support, terminal-aware sizing, --color auto
  honouring NO_COLOR and TTY detection, and documented exit codes.
• Python bindings (PyO3 + maturin, abi3 wheels for CPython 3.9+) exposing
  render_file, render_bytes, render_rgba, render_rgb, render_luma and
  Canvas, with errors mapped onto Python's own exception hierarchy.
• Node.js bindings (napi-rs, Node-API) with generated TypeScript
  declarations and prebuilt binaries for eight targets.
• WebAssembly bindings (wasm-bindgen) with a browser-friendly renderRgba,
  an optional in-WASM decoder, Canvas, and generated TypeScript typings.
• C ABI (rustille.h, cdylib + staticlib) with explicit ownership, stable
  status codes, per-thread error messages, panic containment at the boundary,
  a pkg-config file and a CMake package config.
• Benchmarks (Criterion) for Braille packing, canvas rendering and
  1920×1080 grayscale/RGBA/truecolour/Floyd–Steinberg renders.
• CI across Ubuntu, macOS and Windows, covering formatting, clippy, tests,
  docs, MSRV, feature combinations, packaging, cargo-deny, and a real build
  and smoke test of every binding.
• Automated releases: one semver tag builds every artifact and publishes to
  crates.io, PyPI and npm through OIDC Trusted Publishing.