* Reduce repeated PR setup and transcript timing waits; add hosted comparisons
* Align parallelism contract with Node-only external rebuild toolchain
* Record hosted coverage and launch package, store, and cancellation comparisons
* Apply hosted Windows setup savings and remove measured test waits
* Keep measured PR package gains and remove completed comparison jobs
* Report measured test counts with precise units
* test: run localhost SSH terminal and hooks in CI
* test: isolate localhost SSH session fixtures across repetitions
* test: route remote agent hook source changes to localhost journey
* test: record localhost SSH reliability evidence and remaining gaps
* test: route the real SSH session hook authority