feat: Begins breaking database out into it's own module, using dependencies

Sources/SharedModels/User.swift

@@ -1,7 +1,7 @@
 import Dependencies
 import Foundation
 
-public struct User: Identifiable, Codable, Sendable {
+public struct User: Codable, Equatable, Identifiable, Sendable {
 
   public var id: UUID
   public var createdAt: Date
@@ -20,9 +20,9 @@ public struct User: Identifiable, Codable, Sendable {
     @Dependency(\.uuid) var uuid
 
     self.id = id ?? uuid()
-    self.createdAt = createdAt ?? date()
+    self.createdAt = createdAt ?? date.now
     self.email = email
-    self.updatedAt = updatedAt ?? date()
+    self.updatedAt = updatedAt ?? date.now
     self.username = username
   }
 }