DSA Codebase Audit

Audit this entire codebase for materially useful simplifications in its data structures, state representation, control flow, algorithms, and ownership.

This is an audit-only exercise. Do not edit files, run tests, implement recommendations, commit, or push. Read-only inspection commands are allowed.

You are the coordinator. Continue until the complete codebase has been reviewed and the final audit is validated.

1. Establish the coverage contract

Inspect the repository and inventory every identifiable subsystem.

Give each subsystem:

• a stable ID and descriptive name;
• an exact ownership boundary;
• its key implementation files;
• relevant public interfaces, major call sites, and tests;
• a status: queued, in review, recommend, or skip.