v0.6.0

v0.6.0

Performance

• Adjusted Brotli encoder candidate gating for quality levels 3 through 11.
  The current selection keeps intermediate LZ77 candidates for q4-q8, narrows
  four-byte high-quality and mixed-dictionary candidates to q10/q11, and avoids
  several q3/q9 candidate passes that were recorded as rejected trials.
• In the regenerated just bench report, q3 encode min timings improve by
  1.78x-2.49x versus v0.5.0 on the Silesia 64 KiB and 128 KiB inputs. The q3
  output size increases by 3.3% on 64 KiB and 4.2% on 128 KiB.
• The same report shows q9 encode min timings improving by 1.57x-3.48x. The
  64 KiB q9 output is unchanged; the 128 KiB q9 output grows from 38,926 to
  40,207 bytes, changing its Google-size delta from -1.46% to +1.78%.
• q10 and q11 encode min timings improve by 1.33x-1.54x with unchanged output
  size in the measured rows. q2 also improves by 1.10x-1.23x with unchanged
  output size.
• q0 and q1 output sizes are unchanged, with measured min timings 2.7%-13.8%
  slower. q4 through q8 output sizes are unchanged, with measured min timings
  ranging from 10.6% faster to 7.6% slower depending on quality, target, and
  input.
• Added small decoder hot-path changes for command info lookup, short-distance
  handling, explicit distance decoding, and validated Huffman tree-group access.
  The regenerated decode report shows native min timings 5.7%-7.4% faster than
  v0.5.0; wasm-gc rows range from 3.6% faster to 0.3% slower.

Tools and docs

• Moved Brotli tooling from tools/brotli/ to direct tools/ subdirectories
  and updated just recipes and documentation paths.
• Added same-time benchmark harnesses for comparing encode and decode behavior
  against a baseline git ref.
• Updated the size verification script to report size as a filesize value and
  to select native .exe artifacts explicitly.
• Documented recent js, wasm-gc, and native size-verification results in
  the README.

Tests

• Added white-box coverage for context-map validation, command-info table
  lookup, validated short-distance decoding, explicit distance formulas, and
  encoder candidate gating.