Refactor executable IDs to use strings #262

This commit unifies executable ID structure across categories and
scripts, paving the way for more complex ID solutions for #262.
It also refactors related code to adapt to the changes.

Key changes:

- Change numeric IDs to string IDs for categories
- Use named types for string IDs to improve code clarity
- Add unit tests to verify ID uniqueness

Other supporting changes:

- Separate concerns in entities for data access and executables by using
  separate abstractions (`Identifiable` and `RepositoryEntity`)
- Simplify usage and construction of entities.
- Remove `BaseEntity` for simplicity.
- Move creation of categories/scripts to domain layer
- Refactor CategoryCollection for better validation logic isolation
- Rename some categories to keep the names (used as pseudo-IDs) unique
  on Windows.

src/application/Parser/CategoryCollectionParser.ts

@@ -1,7 +1,7 @@
 import type { CollectionData } from '@/application/collections/';
 import { OperatingSystem } from '@/domain/OperatingSystem';
-import type { ICategoryCollection } from '@/domain/ICategoryCollection';
-import { CategoryCollection } from '@/domain/CategoryCollection';
+import type { ICategoryCollection } from '@/domain/Collection/ICategoryCollection';
+import { CategoryCollection } from '@/domain/Collection/CategoryCollection';
 import type { ProjectDetails } from '@/domain/Project/ProjectDetails';
 import { createEnumParser, type EnumParser } from '../Common/Enum';
 import { parseCategory, type CategoryParser } from './Executable/CategoryParser';