v8.5.4
- style: rustfmt trailing blanks in agent_api test modules
- fix(release): point Agent runtime evidence at agent_api/tests/
- release: a3s-code-core 8.5.4 hard-connect fail-fast
- docs: document install, update, and uninstall for a3s code via a3s CLI
- refactor(agent_api): split oversized tests.rs into concern modules
- chore(core): drop legacy search alias and extract ParallelTaskTool