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/ethers/lib.commonjs/crypto/random.js

@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.randomBytes = void 0;
+/**
+ *  A **Cryptographically Secure Random Value** is one that has been
+ *  generated with additional care take to prevent side-channels
+ *  from allowing others to detect it and prevent others from through
+ *  coincidence generate the same values.
+ *
+ *  @_subsection: api/crypto:Random Values  [about-crypto-random]
+ */
+const crypto_js_1 = require("./crypto.js");
+let locked = false;
+const _randomBytes = function (length) {
+    return new Uint8Array((0, crypto_js_1.randomBytes)(length));
+};
+let __randomBytes = _randomBytes;
+/**
+ *  Return %%length%% bytes of cryptographically secure random data.
+ *
+ *  @example:
+ *    randomBytes(8)
+ *    //_result:
+ */
+function randomBytes(length) {
+    return __randomBytes(length);
+}
+exports.randomBytes = randomBytes;
+randomBytes._ = _randomBytes;
+randomBytes.lock = function () { locked = true; };
+randomBytes.register = function (func) {
+    if (locked) {
+        throw new Error("randomBytes is locked");
+    }
+    __randomBytes = func;
+};
+Object.freeze(randomBytes);
+//# sourceMappingURL=random.js.map