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/ripemd160.js

@@ -0,0 +1,42 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ripemd160 = void 0;
+const ripemd160_1 = require("@noble/hashes/ripemd160");
+const index_js_1 = require("../utils/index.js");
+let locked = false;
+const _ripemd160 = function (data) {
+    return (0, ripemd160_1.ripemd160)(data);
+};
+let __ripemd160 = _ripemd160;
+/**
+ *  Compute the cryptographic RIPEMD-160 hash of %%data%%.
+ *
+ *  @_docloc: api/crypto:Hash Functions
+ *  @returns DataHexstring
+ *
+ *  @example:
+ *    ripemd160("0x")
+ *    //_result:
+ *
+ *    ripemd160("0x1337")
+ *    //_result:
+ *
+ *    ripemd160(new Uint8Array([ 0x13, 0x37 ]))
+ *    //_result:
+ *
+ */
+function ripemd160(_data) {
+    const data = (0, index_js_1.getBytes)(_data, "data");
+    return (0, index_js_1.hexlify)(__ripemd160(data));
+}
+exports.ripemd160 = ripemd160;
+ripemd160._ = _ripemd160;
+ripemd160.lock = function () { locked = true; };
+ripemd160.register = function (func) {
+    if (locked) {
+        throw new TypeError("ripemd160 is locked");
+    }
+    __ripemd160 = func;
+};
+Object.freeze(ripemd160);
+//# sourceMappingURL=ripemd160.js.map