refactor(cli): organize files, simplify types, use @immich/sdk (#6747)

cli/src/commands/logout.command.ts

@@ -0,0 +1,8 @@
+import { BaseCommand } from './base-command';
+
+export class LogoutCommand extends BaseCommand {
+  public static readonly description = 'Logout and remove persisted credentials';
+  public async run(): Promise<void> {
+    await this.sessionService.logout();
+  }
+}