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/aes-js/lib.commonjs/tests.js

@@ -0,0 +1,109 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const assert_1 = __importDefault(require("assert"));
+const fs_1 = __importDefault(require("fs"));
+const path_1 = require("path");
+const aes = __importStar(require("./index.js"));
+const root = (function () {
+    let root = process.cwd();
+    while (true) {
+        if (fs_1.default.existsSync((0, path_1.join)(root, "package.json"))) {
+            return root;
+        }
+        const parent = (0, path_1.join)(root, "..");
+        if (parent === root) {
+            break;
+        }
+        root = parent;
+    }
+    throw new Error("could not find root");
+})();
+describe("Tests Encrypting and Decrypting", function () {
+    const json = fs_1.default.readFileSync((0, path_1.resolve)(root, "./test/test-vectors.json")).toString();
+    const tests = JSON.parse(json);
+    function getCrypter(key, test) {
+        switch (test.modeOfOperation) {
+            case "ctr":
+                return new aes.CTR(key, 0);
+            case "cbc":
+                return new aes.CBC(key, Buffer.from(test.iv));
+            case "cfb":
+                return new aes.CFB(key, Buffer.from(test.iv), test.segmentSize * 8);
+            case "ecb":
+                return new aes.ECB(key);
+            case "ofb":
+                return new aes.OFB(key, Buffer.from(test.iv));
+        }
+        return null;
+    }
+    tests.forEach((test, index) => {
+        it(`tests encrypting: ${test.modeOfOperation}.${index}`, function () {
+            const encrypter = getCrypter(Buffer.from(test.key), test);
+            if (!encrypter) {
+                this.skip();
+            }
+            for (let i = 0; i < test.plaintext.length; i++) {
+                const plaintext = Buffer.from(test.plaintext[i]);
+                const ciphertext = Buffer.from(test.encrypted[i]);
+                const result = Buffer.from(encrypter.encrypt(plaintext));
+                assert_1.default.ok(ciphertext.equals(result), "encrypting failed");
+            }
+        });
+        it(`tests decrypting: ${test.modeOfOperation}.${index}`, function () {
+            const decrypter = getCrypter(Buffer.from(test.key), test);
+            if (!decrypter) {
+                this.skip();
+            }
+            for (let i = 0; i < test.plaintext.length; i++) {
+                const plaintext = Buffer.from(test.plaintext[i]);
+                const ciphertext = Buffer.from(test.encrypted[i]);
+                const result = Buffer.from(decrypter.decrypt(ciphertext));
+                assert_1.default.ok(plaintext.equals(result), "decrypting failed");
+            }
+        });
+    });
+});
+describe("Tests Padding", function () {
+    for (let size = 0; size < 100; size++) {
+        it(`tests padding: length=${size}`, function () {
+            // Create a random piece of data
+            const data = new Uint8Array(size);
+            data.fill(42);
+            // Pad it
+            const padded = aes.pkcs7Pad(data);
+            assert_1.default.ok((padded.length % 16) === 0, "Failed to pad to block size");
+            assert_1.default.ok(data.length <= padded.length && padded.length <= data.length + 16, "Padding went awry");
+            assert_1.default.ok(padded[padded.length - 1] >= 1 && padded[padded.length - 1] <= 16, "Failed to pad to block size");
+            // Trim it
+            const trimmed = aes.pkcs7Strip(padded);
+            assert_1.default.ok(Buffer.from(data).equals(trimmed), "Failed to trim to original data");
+        });
+    }
+});
+//# sourceMappingURL=tests.js.map