v0.3.0
- style: apply rustfmt
- build: optimize release profile, sync SDK versions to 0.3.0, add CI caching
- feat(lane): EventStream Stream impl, manager subscribe(), lane pressure events
- docs: update README for v0.3 — feature flags, event catalog, bug fixes
- fix(queue): wire rate_limit, priority_boost, and EventEmitter
- refactor: feature-gate optional modules, remove anyhow from production deps