v0.3.0

Changelog

• fcf292d agent: remove dead trimToRecent function
• f9db1f7 decouple agentic memory and compaction into mutually exclusive paths
• 2e9e79f feat: add LaTeX math and Plotly chart rendering, improve provider retry logic
• 87f932a feat: add note export (download) endpoint and UI button
• bb444dd feat: add project notes feature
• 3d40492 fix(notes): recover stuck notes on startup and finalize on session delete
• 6bba33f fix(provider): retry on 429 rate limit with exponential backoff
• 2eb9124 fix(session,agent): guard trimToRecent from empty slices, fix token-savings math
• 3d85dad release: update release notes for v0.3.0
• c45ef7d session compaction: operate on user-turn boundaries instead of loop steps