feat(api): add NoteType and NoteFieldType API routes

Implement REST API endpoints for managing note types and their fields:
- CRUD operations for note types (/api/note-types)
- Field management nested under note types (add, update, delete, reorder)
- Constraint checks to prevent deletion of note types with existing notes
- Constraint checks to prevent deletion of fields with existing values

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/server/routes/index.ts b/src/server/routes/index.ts
index 08f42df..74f239f 100644
--- a/src/server/routes/index.ts
+++ b/src/server/routes/index.ts
@@ -1,5 +1,6 @@
 export { auth } from "./auth.js";
 export { cards } from "./cards.js";
 export { decks } from "./decks.js";
+export { noteTypes } from "./noteTypes.js";
 export { study } from "./study.js";
 export { sync } from "./sync.js";