Add unit tests to the project

[webbpinner]

Feature Request

The project currently has minimal test coverage (test/example.test.js and test/api_keys.test.js). This issue tracks expanding unit test coverage across the codebase.

Background

The project uses @hapi/lab as the test runner and @hapi/code for assertions. lib/server.js provides an init() helper for spinning up a test server instance without starting it, which is the correct pattern for route-level testing.

Tests are run with:

npm run start-test

Proposed Scope

• Route handlers (routes/api/v1/) — covering CRUD operations, auth/scope enforcement, and edge cases
• Python aux data manager framework (misc/) — builders, cleaners, and the runner
• Shared JS utilities (lib/utils.js, lib/validations.js)

Notes

• Tests run against sealogDB_devel (development database), which is rebuilt on each start-devel run
• A CI step to run tests automatically on PRs would complement this work