Bump TypeScript to 5.3 with verbatimModuleSyntax

This commit upgrades TypeScript to the latest version 5.3 and introduces
`verbatimModuleSyntax` in line with the official Vue guide
recommendatinos (vuejs/docs#2592).

By enforcing `import type` for type-only imports, this commit improves
code clarity and supports tooling optimization, ensuring imports are
only bundled when necessary for runtime.

Changes:

- Bump TypeScript to 5.3.3 across the project.
- Adjust import statements to utilize `import type` where applicable,
  promoting cleaner and more efficient code.

src/domain/Category.ts

@@ -1,6 +1,6 @@
 import { BaseEntity } from '../infrastructure/Entity/BaseEntity';
-import { IScript } from './IScript';
-import { ICategory } from './ICategory';
+import type { ICategory } from './ICategory';
+import type { IScript } from './IScript';
 
 export class Category extends BaseEntity<number> implements ICategory {
   private allSubScripts?: ReadonlyArray<IScript> = undefined;