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.

tests/unit/shared/Stubs/CategoryCollectionStateStub.ts

@@ -3,7 +3,7 @@ import type { ICategoryCollectionState } from '@/application/Context/State/ICate
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import type { Script } from '@/domain/Executables/Script/Script';
 import { ScriptStub } from '@tests/unit/shared/Stubs/ScriptStub';
-import type { ICategoryCollection } from '@/domain/ICategoryCollection';
+import type { ICategoryCollection } from '@/domain/Collection/ICategoryCollection';
 import type { UserSelection } from '@/application/Context/State/Selection/UserSelection';
 import type { SelectedScript } from '@/application/Context/State/Selection/Script/SelectedScript';
 import type { FilterContext } from '@/application/Context/State/Filter/FilterContext';
@@ -33,7 +33,10 @@ export class CategoryCollectionStateStub implements ICategoryCollectionState {
     this.collection = new CategoryCollectionStub()
       .withOs(this.os)
       .withTotalScripts(this.allScripts.length)
-      .withAction(new CategoryStub(0).withScripts(...allScripts));
+      .withAction(
+        new CategoryStub(`[${CategoryCollectionStateStub.name}]-default-action`)
+          .withScripts(...allScripts),
+      );
   }
 
   public withCollection(collection: ICategoryCollection): this {