Zova v0.21.0

Highlights

Introduces Zova's extension host and proves it with the bundled trgm fuzzy-text extension.

What's changed

• Added namespaced extension manifests, installation metadata, lifecycle hooks, checks, and private storage ownership.
• Added bundled and application-provided extension registries with collision and compatibility validation.
• Added explicitly trusted local dynamic extension bundles; database files never auto-load native code.
• Added extension list/info/install/check/drop/trust CLI workflows.
• Added the target-aware trgm SQL surface for indexed fuzzy text similarity.
• Added C ABI, Rust, Go, and Python extension-management support.
• Added the extension contract and trust-model documentation.

Compatibility

• Bumps the experimental .zova format to 5 for required extension registry schema.
• Dynamic extension loading is explicit and trust-gated; .zova files are not executable packages.

Full Changelog: v0.20.0...v0.21.0