Mass rename to align planned codename

Bitvault/OpenLockerHandler.cs

@@ -0,0 +1,33 @@
+using System.Text;
+using Toolkit.Foundation;
+
+namespace Bitvault;
+
+public class OpenLockerHandler(LockerConfiguration configuration,
+    ISecurityKeyFactory securityKeyFactory,
+    ILockerStorageFactory lockerStorageFactory) :
+    IHandler<ActivateEventArgs<Locker>, bool>
+{
+    public async Task<bool> Handle(ActivateEventArgs<Locker> args,
+        CancellationToken cancellationToken)
+    {
+        if (args.Value is Locker locker && configuration.Name is { Length: > 0 } name && locker.Password is { Length: > 0 } password)
+        {
+            if (configuration.Key?.Split(':') is { Length: >= 2 } keyPart)
+            {
+                byte[]? salt = Convert.FromBase64String(keyPart[0]);
+                byte[]? encryptedKey = Convert.FromBase64String(keyPart[1]);
+
+                if (securityKeyFactory.Create(Encoding.UTF8.GetBytes(password), encryptedKey, salt) is SecurityKey key)
+                {
+                    if (await lockerStorageFactory.Create(name, key))
+                    {
+                        return true;
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+}