* perf(ci): reduce server test latency
Server test files use isolated resources, so they do not require suite-wide serialization.
* fix(ci): scope server test parallelism to unit suite
Keep real-provider and local-resource suites serialized because they may share user configuration and account limits.
* fix(terminal): isolate zsh runtimes by process
Prevent concurrent daemon and test processes from deleting or replacing shell integration files used by another process.
* fix(ci): preserve required matrix check names
GitHub evaluates job conditions before expanding a matrix. Expand active matrices first and gate their expensive steps so required check contexts are always reported. Allow superseded runs to cancel while retaining fail-open path detection.