refactor: move brother_node development artifact to dev/test-nodes subdirectory

Development Artifact Cleanup:
✅ BROTHER_NODE REORGANIZATION: Moved development test node to appropriate location
- dev/test-nodes/brother_node/: Moved from root directory for better organization
- Contains development configuration, test logs, and test chain data
- No impact on production systems - purely development/testing artifact

✅ DEVELOPMENT ARTIFACTS IDENTIFIED:
- Chain ID: aitbc-brother-chain (test/development chain)
- Ports: 8010 (P2P) and 8011 (RPC) - different from production
- Environment: .env file with test configuration
- Logs: rpc.log and node.log from development testing session (March 15, 2026)

✅ ROOT DIRECTORY CLEANUP: Removed development clutter from production directory
- brother_node/ moved to dev/test-nodes/brother_node/
- Root directory now contains only production-ready components
- Development artifacts properly organized in dev/ subdirectory

DIRECTORY STRUCTURE IMPROVEMENT:
📁 dev/test-nodes/: Development and testing node configurations
🏗️ Root Directory: Clean production structure with only essential components
🧪 Development Isolation: Test environments separated from production

BENEFITS:
✅ Clean Production Directory: No development artifacts in root
✅ Better Organization: Development nodes grouped in dev/ subdirectory
✅ Clear Separation: Production vs development environments clearly distinguished
✅ Maintainability: Easier to identify and manage development components

RESULT: Successfully moved brother_node development artifact to dev/test-nodes/ subdirectory, cleaning up the root directory while preserving development testing environment for future use.

dev/env/node_modules/zod/src/v3/tests/base.test.ts

@@ -0,0 +1,29 @@
+// @ts-ignore TS6133
+import { expect, test } from "vitest";
+
+import * as z from "zod/v3";
+import { util } from "../helpers/util.js";
+
+test("type guard", () => {
+  const stringToNumber = z.string().transform((arg) => arg.length);
+
+  const s1 = z.object({
+    stringToNumber,
+  });
+  type t1 = z.input<typeof s1>;
+
+  const data = { stringToNumber: "asdf" };
+  const parsed = s1.safeParse(data);
+  if (parsed.success) {
+    util.assertEqual<typeof data, t1>(true);
+  }
+});
+
+test("test this binding", () => {
+  const callback = (predicate: (val: string) => boolean) => {
+    return predicate("hello");
+  };
+
+  expect(callback((value) => z.string().safeParse(value).success)).toBe(true); // true
+  expect(callback((value) => z.string().safeParse(value).success)).toBe(true); // true
+});