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/infrastructure/Entity/BaseEntity.ts

@@ -1,14 +0,0 @@
-import { isNumber } from '@/TypeHelpers';
-import type { IEntity } from './IEntity';
-
-export abstract class BaseEntity<TId> implements IEntity<TId> {
-  protected constructor(public id: TId) {
-    if (!isNumber(id) && !id) {
-      throw new Error('Id cannot be null or empty');
-    }
-  }
-
-  public equals(otherId: TId): boolean {
-    return this.id === otherId;
-  }
-}

src/infrastructure/Entity/IEntity.ts

@@ -1,5 +0,0 @@
-/** Aggregate root */
-export interface IEntity<TId> {
-  id: TId;
-  equals(other: TId): boolean;
-}

src/infrastructure/Repository/InMemoryRepository.ts

@@ -1,12 +1,15 @@
 import type { Repository } from '../../application/Repository/Repository';
-import type { IEntity } from '../Entity/IEntity';
+import type { RepositoryEntity, RepositoryEntityId } from '../../application/Repository/RepositoryEntity';
 
-export class InMemoryRepository<TKey, TEntity extends IEntity<TKey>>
-implements Repository<TKey, TEntity> {
+export class InMemoryRepository<TEntity extends RepositoryEntity>
+implements Repository<TEntity> {
   private readonly items: TEntity[];
 
-  constructor(items?: TEntity[]) {
-    this.items = items ?? new Array<TEntity>();
+  constructor(items?: readonly TEntity[]) {
+    this.items = new Array<TEntity>();
+    if (items) {
+      this.items.push(...items);
+    }
   }
 
   public get length(): number {
@@ -17,7 +20,7 @@ implements Repository<TKey, TEntity> {
     return predicate ? this.items.filter(predicate) : this.items;
   }
 
-  public getById(id: TKey): TEntity {
+  public getById(id: RepositoryEntityId): TEntity {
     const items = this.getItems((entity) => entity.id === id);
     if (!items.length) {
       throw new Error(`missing item: ${id}`);
@@ -39,7 +42,7 @@ implements Repository<TKey, TEntity> {
     this.items.push(item);
   }
 
-  public removeItem(id: TKey): void {
+  public removeItem(id: RepositoryEntityId): void {
     const index = this.items.findIndex((item) => item.id === id);
     if (index === -1) {
       throw new Error(`Cannot remove (id: ${id}) as it does not exist`);
@@ -47,7 +50,7 @@ implements Repository<TKey, TEntity> {
     this.items.splice(index, 1);
   }
 
-  public exists(id: TKey): boolean {
+  public exists(id: RepositoryEntityId): boolean {
     const index = this.items.findIndex((item) => item.id === id);
     return index !== -1;
   }