Introduces a Make-based orchestration for simulating, indexing, merging, filtering, and verifying k-mer counts and presence. Exposes internal builder and iterator APIs publicly, enforces mandatory leading slashes for predicate patterns, registers the `obitaxonomy` crate, and updates tooling configurations alongside documentation.
- Remove redundant validation logic in login handler
- Consolidate session token generation into a single utility function
- Update error handling to use consistent HTTP status codes