Rename and refactor inventory model to bark database model

Renamed `inventoryModel.cs` to `barkDbModel.cs` and refactored the context class from `InventoryContext` to `BarkContext`. Consolidated inventory item properties into a new `InventoryItems` class for better organization and future scalability.

barkmanAPI/barkDbModel.cs

@@ -2,20 +2,13 @@ using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections.Generic;
 
-public class InventoryContext : DbContext
+public class BarkContext : DbContext
 {
-    public int Id {get; set;} 
+    public DbSet<InventoryItems> Inventory  { get; set; }
-    public string Name { get; set; }
-    public string Brand { get; set; }
-    public string? SerialNumber { get; set; }
-    public string?  Status { get; set; }
-    public float? RentalPrice { get; set; }
-    public float? ReplacementCost { get; set; }
-    public string? Notes { get; set; }
     
     public string DbPath { get; }
 
-    public InventoryContext()
+    public BarkContext()
     {
         var folder = Environment.SpecialFolder.LocalApplicationData;
         var path = Environment.GetFolderPath(folder);
@@ -26,5 +19,17 @@ public class InventoryContext : DbContext
     // special "local" folder for your platform.
     protected override void OnConfiguring(DbContextOptionsBuilder options)
         => options.UseSqlite($"Data Source={DbPath}");
-    
+}
-}
+
+public class InventoryItems
+{
+    public int Id {get; set;} 
+    public string Name { get; set; }
+    public string Brand { get; set; }
+    public string? SerialNumber { get; set; }
+    public string?  Status { get; set; }
+    public float? RentalPrice { get; set; }
+    public float? ReplacementCost { get; set; }
+    public string? Notes { get; set; }
+}
+