fix: Resolve TypeScript build errors for production deployment

- Add type assertion for SurrealDB query results in debug/nodes route
- Install @types/three for Three.js type definitions
- Exclude tests directory from TypeScript compilation
- Wrap useSearchParams in Suspense boundary on login page (Next.js 16 requirement)

All routes now build successfully for production deployment.

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

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

next-env.d.ts

@@ -1,6 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-import "./.next/dev/types/routes.d.ts";
+import "./.next/types/routes.d.ts";
 
 // NOTE: This file should not be edited
 // see https://nextjs.org/docs/app/api-reference/config/typescript for more information.