chore: add monorepo tools (#9196)

tools/cli/src/build.ts

@@ -0,0 +1,15 @@
+import { PackageCommand } from './command';
+
+export class BuildCommand extends PackageCommand {
+  static override paths = [['build'], ['b']];
+
+  async execute() {
+    const args = ['affine build', this.package];
+
+    if (this.deps) {
+      args.push('--deps');
+    }
+
+    await this.cli.run(args);
+  }
+}