Improve find methods schemas to convert to valid types

[n1kolasM]

No description provided.

[Copilot]

Pull Request Overview

This PR improves type safety in validation schemas by ensuring that validated parameters are properly converted to their expected branded types. The changes introduce branded string types for various ID types and convert unknown parameter types to properly validated types before passing them to provider methods.

• Introduced brandedString helper function to transform plain strings into branded types
• Changed parameter types from specific types to unknown in find methods to ensure runtime validation
• Added proper type casting for NotificationType using z.nativeEnum

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
packages/server/src/middleware/validate.ts	Updated validation schemas to use branded types and modified find methods to accept unknown params that are validated and cast to proper types
packages/server/src/tests/middleware/validate.test.ts	Updated test to validate date string coercion by passing raw string date and expecting coerced Date object

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}