Add component tests for ReasonerDialog

[aadorian]

Description

components/ontology/reasoner-dialog.tsx has no component tests. This is a good first task for testing async UI with mocked dependencies.

Difficulty

Easy–Medium

Skills

React Testing Library, Jest

Relevant files

• components/ontology/reasoner-dialog.tsx
• components/ontology/__tests__/reasoner-dialog.test.tsx (create)
• lib/ontology/reasoner.ts — mock this module

Tasks

• Create component test file
• Test dialog opens and closes
• Test "Run reasoner" shows loading state then results (mock reasoner)
• Test error state when reasoner throws

Acceptance Criteria

• All new tests pass with npm test
• Reasoner module is mocked — no WASM or long-running calls in CI
• Follow existing test patterns

Getting started

1. Comment on this issue to get assigned
2. Fork the repo and create a branch: test/reasoner-dialog
3. Run npm ci && npm test before opening a PR