chore(release): 0.3.0

fix: use server weekly usage summary in activity view

fix: split weekly and yearly activity usage by timestamp

feat: add timestamped session usage artifacts

feat: load activity windows independently during hydration

feat: show hydration progress in activity panels

feat: bootstrap inspector before full hydration

fix: wait for inspector readiness before opening browser

perf: speed up live toc reveal

perf: reduce watcher refresh latency

feat: smooth inspector live updates

feat: batch live stream updates

test: cover weekly activity label state

fix: persist weekly activity control labels

fix: harden app live refresh handling