- Replace manual subscription Map with PubSub.unbounded per instance
- Per-type PubSubs + wildcard PubSub, cleaned up via addFinalizer
- InstanceDisposed published before PubSub shutdown so subscribers see it
- Replace makeRunPromise with makeRuntime (single runtime with runPromise + runFork)
- Update all 19 services to use makeRuntime destructuring
- Legacy facade preserved: publish/subscribe/subscribeAll same signatures
- subscribe/subscribeAll fork stream consumer fibers, return interrupt function
- Extract Format.file() for explicit formatting, remove event-driven subscription
- Inline Format.file() calls in write/edit/apply_patch tools
- Drop Bus.once (zero callers)
Kit Langton