V0.4.0

What's Changed

• fix(screenshot-curator): eliminate recurring capture failure modes by @Awalgawe in #16
• fix(cost-chart): fill stacked bar when total cost is under $1 by @Awalgawe in #17
• fix: session data accuracy — tiered cache pricing, token dedup, nested subagents by @Awalgawe in #18
• feat: surface Claude-generated session titles (ai-title lines) by @Awalgawe in #19
• feat: real turn durations and API reliability counters by @Awalgawe in #20
• feat: friction metrics — interruptions, tool denials, prompt provenance by @Awalgawe in #21
• feat: hook execution analytics on the Hooks page by @Awalgawe in #22
• feat: per-tool analytics, compaction markers, files touched by @Awalgawe in #23
• feat(sessions): per-tool analytics, compaction markers & files-touched (+ review hardening) by @Awalgawe in #24
• feat(dashboard): surface permission-mode changes, split Friction panel by @Awalgawe in #25
• chore(release): prepare 0.4.0 by @Awalgawe in #26

Full Changelog: 0.3.0...0.4.0