Implement: Case Types

[rubenvdlinde]

OpenSpec Change: case-types

Spec path: openspec/changes/case-types

Generated from Specter (2 features).

[rubenvdlinde]

✅ Hydra Builder — Feature implementation complete

Draft PR created: #252

All case type management tabs have been integrated into the CaseTypeDetail component:

• Result Types (with archival rules)
• Role Types (with generic role selection)
• Properties (custom field definitions)
• Document Types (with direction and requirements)

Ready for review.