v0.2.0

What's New in 0.2.0

• Incremental extract caching with metadata output
• Incremental Neo4j load with persisted load state and metrics
• Snapshot timeline workflow (snapshots list/create/diff/report)
• Delta command for snapshot-to-snapshot change summaries
• Impact command with transitive caller traversal
• Hardened Cypher execution with query parameterization
• No-DB snapshot hashing fallback from events.jsonl
• Non-DB end-to-end smoke automation (scripts/smoke_no_db.ps1)
• CI no-DB smoke job