v0.4.0

Changelog

• ba595b9 Merge pull request #11 from runbear-io/feat/knowledge-init-flows
• c60018e Merge pull request #12 from runbear-io/feat/session-notes-agent-hooks
• 9bc9472 Merge pull request #13 from runbear-io/feat/read-heatmap
• c48dc42 Merge pull request #14 from runbear-io/feat/insights-dashboard
• 626a9c0 feat(cli): bdrive hooks — agent-agnostic sync hook registration
• 2ce714a feat(sync): agent read reporting — read-log, spool, hub report, hook matchers
• 10a9998 feat(sync): fence nested mounts; knowledge-init flows in plugin docs
• c1f0d0f feat(sync): session-linked notes — stamp changes with the agent session
• 644d738 feat(web): /heat?by=device — agent coverage breakdown
• e3ca821 feat(web): Insights quadrant + read-heat docs (phase 2)
• 88e361a feat(web): layered Insights dashboard — treemap, dense scatter, hot path
• 28dc882 feat(web): read heatmap phase 1 — ledger, heat API, folder heat dots
• 06bedab feat(web): selectable folders with listing + per-folder change feed