brotli q11 over the ~320MB wasm set ran serially on one core (~0.4MB/s),
dominating the release publish job. Compress every to-be-uploaded file
concurrently on the libuv threadpool (compressBytesAsync + UV_THREADPOOL_SIZE
sized to the machine), so wall time drops from sum-of-files to roughly the
largest single file (kicad_editor.wasm): 329s for the full set locally vs
~11.5min of CPU. Upload ordering invariants unchanged: meta.json still last
per tool, registry last overall; moved-tag guard and reuse path untouched.
Also adds BROTLI_PARAM_SIZE_HINT and moves the publish-wasm job to
ubicloud-standard-8 so there is a core per file.
Verified byte-identical CDN layout vs the old script (local driver, pinned
builtAt), blob roundtrip to source sha, reuse + --from-registry modes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JQ9npuB6uLvkv6gzBV5GPh
f8ae378645