v0.7.0

Added

• Added a doctor CLI command for bring-your-own-vault parser, graph,
  metadata, and warehouse readiness checks.
• Added entity-contract and onboarding documentation for generic entity usage.
• Added minimal and custom-entity example vaults.
• Added contract tests proving custom folder-derived entity types flow through
  the dbt generic entity marts.

Changed

• Custom top-level folders now become singular generic entity types, such as
  Clients/ to client and Assets/ to asset.
• DuckDB ingest now handles valid vaults with empty parsed tables such as no
  tags or no tasks.