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/readdirp/package.json

@@ -0,0 +1,70 @@
+{
+  "name": "readdirp",
+  "description": "Recursive version of fs.readdir with small RAM & CPU footprint.",
+  "version": "4.1.2",
+  "homepage": "https://github.com/paulmillr/readdirp",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/paulmillr/readdirp.git"
+  },
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/paulmillr/readdirp/issues"
+  },
+  "author": "Thorsten Lorenz <thlorenz@gmx.de> (thlorenz.com)",
+  "contributors": [
+    "Thorsten Lorenz <thlorenz@gmx.de> (thlorenz.com)",
+    "Paul Miller (https://paulmillr.com)"
+  ],
+  "engines": {
+    "node": ">= 14.18.0"
+  },
+  "files": [
+    "index.js",
+    "index.d.ts",
+    "index.d.ts.map",
+    "index.js.map",
+    "esm"
+  ],
+  "main": "./index.js",
+  "module": "./esm/index.js",
+  "types": "./index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./esm/index.js",
+      "require": "./index.js"
+    }
+  },
+  "sideEffects": false,
+  "keywords": [
+    "recursive",
+    "fs",
+    "stream",
+    "streams",
+    "readdir",
+    "filesystem",
+    "find",
+    "filter"
+  ],
+  "scripts": {
+    "build": "tsc && tsc -p tsconfig.cjs.json",
+    "lint": "prettier --check index.ts test/index.test.js",
+    "format": "prettier --write index.ts test/index.test.js",
+    "test": "node test/index.test.js",
+    "test:coverage": "c8 node test/index.test.js"
+  },
+  "devDependencies": {
+    "@paulmillr/jsbt": "0.3.1",
+    "@types/node": "20.14.8",
+    "c8": "10.1.3",
+    "chai": "4.3.4",
+    "chai-subset": "1.6.0",
+    "micro-should": "0.5.0",
+    "prettier": "3.1.1",
+    "typescript": "5.5.2"
+  },
+  "funding": {
+    "type": "individual",
+    "url": "https://paulmillr.com/funding/"
+  }
+}