Extract subprocess execution and process contracts into @orca/process-host with explicit public entry points, independent checks, and one Node 18 compatible CommonJS runtime. Migrate application consumers and integrate package builds, dependency selection, import enforcement, and runtime resource staging.
Preserve daemon startup ownership and profile isolation, and qualify development rebuild recovery and concurrent output publication. Remove unnecessary aliases, test forwarding exports, and a duplicate output scan.
Validation: full typechecks, changed-code quality, package and artifact checks, native Windows builds/types plus 306 runtime tests, and independent native reviews.
Matched full E2E controls on original main and unchanged reviewed head both pass all 17 applicable tests (nine skips). Earlier intermittent E2E failures are documented in the PR; no assertions were weakened. The final combined-tree audit preserves both branches with no import-boundary violations.
* Run Vitest on Bun while preserving Node runtime contracts
* Preserve runtime timing provenance and keep the Bun pin in config
* Scope builtin compatibility mocks to test-only lint exceptions
* Give capture retention fixtures distinct filesystem timestamps
* Await the copy button success state in the React fixture
* Bound Node test worker shutdown and tighten migration fixtures
Neil