* Speed up PR CI with per-job path skips and native caches
Skip git-compat, xterm, packaging, and shell jobs when their inputs are
unchanged, reuse the composite install action (including Windows node-pty
cache), skip compiling the Windows CLI launcher on a cache hit, and cut the
test matrix from 16x2 to 8x2 shards without dropping coverage.
* Widen PR job skip prefixes for orcad browser and live shells
Chrome session/tab modules and zsh/fish wrapper templates are inputs to
required jobs the classifier previously skipped. Include that implementation
graph so those jobs still run when the files they load change.
* Fix CI cache safety and required gates
* Build scriptless Windows addons explicitly
* Preserve node-pty Windows support prebuild
* Remove duplicated Windows launcher unit lane
Neil
Jinwoo Hong