Add simple enemy builder and weapon class

src/TextLore/Components/Pages/Games/Roguelike/Builders/EnemyBuilder.cs

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+using TextLore.Components.Pages.Games.Roguelike.Models;
+using TextLore.Shared.Logic;
+
+namespace TextLore.Components.Pages.Games.Roguelike.Builders;
+
+public class EnemyBuilder : IBuilder<Enemy>
+{
+    private string name = string.Empty;
+    private string description = string.Empty;
+    private int maxHealth = 0;
+
+    public EnemyBuilder WithName(string name)
+    {
+        this.name = name;
+        return this;
+    }
+
+    public EnemyBuilder WithDescription(string description)
+    {
+        this.description = description;
+        return this;
+    }
+
+    public EnemyBuilder WithMaxHealth(int maxHealth)
+    {
+        this.maxHealth = maxHealth;
+        return this;
+    }
+
+    public Enemy Build()
+    {
+        return new Enemy(name, description, maxHealth);
+    }
+}

src/TextLore/Components/Pages/Games/Roguelike/Models/Enemy.cs

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+using TextLore.Shared.Models.Level;
+
+namespace TextLore.Components.Pages.Games.Roguelike.Models;
+
+public class Enemy(string name, string description, int maxHealth) : IRoomObject
+{
+    public string Name => name;
+
+    public string Description => description;
+
+    public int MaxHealth { get; } = maxHealth;
+
+    public int Health { get; set; } = maxHealth;
+}

src/TextLore/Components/Pages/Games/Roguelike/Models/Weapon.cs

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+using TextLore.Shared.Models.Player;
+
+namespace TextLore.Components.Pages.Games.Roguelike.Models;
+
+public class Weapon(string name, string description, string tag) : IInventoryItem
+{
+    public string Name { get; } = name;
+    public string Description { get; } = description;
+    public string Tag { get; } = tag;
+
+    public void Shoot()
+    {
+        // Shoot the weapon
+    }
+}

src/TextLore/Shared/Logic/IBuilder.cs

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+namespace TextLore.Shared.Logic;
+
+public interface IBuilder<out T> where T : class
+{
+    T Build();
+}

src/TextLore/Shared/Models/Level/IRoomObject.cs

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+namespace TextLore.Shared.Models.Level;
+
+public interface IRoomObject
+{
+    public string Name { get; }
+}

src/TextLore/Shared/Models/Player/IInventoryItem.cs

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+namespace TextLore.Shared.Models.Player;
+
+public interface IInventoryItem
+{
+    public string Name { get; }
+
+    public string Description { get; }
+
+    public string Tag { get; }
+}