v0.2.0

This release streamlines repository verification by splitting the old all-in-one regression path into a fast default lane and an explicit integration lane.

Highlights

• split CI into a lightweight fast lane and a separate integration workflow
• move heavy black-box, multi-database, and real build artifact tests behind -tags=integration
• keep go test ./... as the default local and PR verification path
• add representative fast compile smoke coverage for generated projects
• clarify contributor and release docs around fast lane vs integration lane
• formally mark sample/ as reference-only rather than generator source of truth