Module summary_registry 

Unified lookup for function summaries from all sources.

The SummaryRegistry provides a three-tier priority lookup for function summaries:

1. User specs (highest priority) – hand-authored YAML overrides
2. Computed – analysis-derived summaries
3. Defaults (lowest priority) – shipped built-in specs

This unifies YAML-authored specs and analysis-computed summaries into a single lookup interface, used by incremental and compositional analyses.

Structs

SummaryRegistry

Unified registry for function summaries with three-tier priority lookup.