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

Sources/DatabaseClient/Users.swift

@@ -0,0 +1,76 @@
+import Dependencies
+import DependenciesMacros
+import Foundation
+import SharedModels
+
+public extension DatabaseClient {
+
+  @DependencyClient
+  struct Users: Sendable {
+    public var create: @Sendable (User.Create) async throws -> User
+    public var delete: @Sendable (User.ID) async throws -> Void
+    public var fetchAll: @Sendable () async throws -> [User]
+    public var get: @Sendable (User.ID) async throws -> User?
+    public var login: @Sendable (User.Login) async throws -> User.Token
+    public var logout: @Sendable (User.Token.ID) async throws -> Void
+  }
+}
+
+extension DatabaseClient.Users: TestDependencyKey {
+  public static let testValue: DatabaseClient.Users = Self()
+}
+
+public extension User {
+
+  struct Create: Codable, Sendable {
+    public let username: String
+    public let email: String
+    public let password: String
+    public let confirmPassword: String
+
+    public init(
+      username: String,
+      email: String,
+      password: String,
+      confirmPassword: String
+    ) {
+      self.username = username
+      self.email = email
+      self.password = password
+      self.confirmPassword = confirmPassword
+    }
+  }
+
+  struct Login: Codable, Sendable {
+    public let username: String?
+    public let email: String?
+    public let password: String
+
+    public init(
+      username: String?,
+      email: String? = nil,
+      password: String
+    ) {
+      self.username = username
+      self.email = email
+      self.password = password
+    }
+  }
+
+  struct Token: Codable, Equatable, Identifiable, Sendable {
+    public let id: UUID
+    public let userID: User.ID
+    public let value: String
+
+    public init(
+      id: UUID,
+      userID: User.ID,
+      value: String
+    ) {
+      self.id = id
+      self.userID = userID
+      self.value = value
+    }
+  }
+
+}