PureJsImage v0.7.0

Added

• Completed the common static 8-bit Huffman JPEG reference before optional WASM work: incremental
  entropy input, restart-aware region seeking, chroma-aware bilinear upsampling, SOF1 and sequential
  multi-scan decode, 4:4:0 and 4:1:1 fixtures, native grayscale and restart-marker output, hostile
  input limits, and provider-neutral parity vectors.
• Added native 1/2, 1/4, and 1/8 JPEG IDCT output, decoder-driven scale selection for safe
  full-frame downscales, baseline/progressive/restart/subsampling regressions, and an isolated
  runtime, RSS, avoided-pixel, and output-error benchmark against the full-resolution path.
• Added an explicit modern-browser entry with File/Blob, ArrayBuffer, Uint8Array, Blob output,
  custom sinks, browser-safe TypeScript declarations, and a browser bundle gate that rejects Node
  built-ins across the full codec graph.
• Added browser PNG encoding through CompressionStream and bounded browser rotation/orientation
  storage through OPFS, a lazy 64 MiB chunked-memory fallback, and IndexedDB for larger transforms.
• Added HEIF/HEIC EXIF and RGB ICC preservation for conversion workflows, including orientation
  normalization, plus structured ICC and nclx color-profile metadata for HEIF and AVIF.
• Refreshed the static GitHub Pages documentation with responsive guides, API and codec references,
  benchmark tables, memory-model explanations, and clearer capability boundaries.
• Documented the progressive JavaScript, optional WASM, and future WebGPU backend roadmap,
  including capability probing, workload-based selection, bounded GPU memory rules, runtime
  fallback policy, correctness gates, and a staged browser-first delivery plan.
• Added a reproducible bundle and deployment-footprint comparison for PureJsImage, Jimp, image-js,
  and Sharp, with a matched common codec set and explicit accounting for Sharp's native payload.
• Added one machine-readable codec capability manifest that generates README, detailed codec,
  website, public JSON, and compatibility-test expectations, with a stale-output CI gate and a
  repository agent skill for rolling capabilities out consistently.

Changed

• Made bundle and installed-package size reporting part of the mandatory npm run check gate.
• Reworked the root README into a shorter human-facing overview with a practical all-codec example,
  bundle sizes, codec support and compatibility links, benchmark charts, and direct routes to the
  API, benchmark, browser, temporary-storage, specification, and contributor details.
• Split Node file, Buffer, zlib, and temporary-file services from the portable codec and pipeline
  core while preserving the existing Node API and measured transform performance.
• Made Node.js and modern-browser portability an explicit project goal and release requirement.
• Reused a single Node file descriptor across detection, metadata, and execution reads, and avoided
  redundant copies when stable sources fill codec regions.
• Surfaced the measured 191.8-211.0 MiB JPEG 2000 decode peak and its 512 MiB Lambda-tier guidance
  in the README and codec documentation.

Fixed

• Reduced first-party lossless WebP output for graphics by adding predictor and subtract-green
  transforms, LZ77 references, and adaptive Huffman trees, with exact Sharp/libwebp pixel checks
  and an isolated size and peak-memory benchmark for the documented full-frame encoder state.
• Decoded the quantization matrices and block delta-Q syntax used by default Sharp/libaom AVIF
  output in the restricted opaque 8-bit YUV 4:2:0 path, with exact q50 and q80 YUV agreement
  against both dav1d and libaom while delta loop-filter syntax remains explicitly unsupported.
• Restricted SVG recognition to the document's first element so HTML with inline SVG and JSON text
  mentioning <svg are no longer misreported as SVG input.