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/@streamparser/json-node/test/utils/setup.ts

@@ -0,0 +1,11 @@
+import {
+  TransformStream as NodeTransformStream,
+  ReadableStream as NodeReadableStream,
+} from "node:stream/web";
+
+if (!global.TransformStream) {
+  // @ts-expect-error Overriding TransformStream for Node 16
+  global.TransformStream = NodeTransformStream;
+  // @ts-expect-error Overriding ReadableStream for Node 16
+  global.ReadableStream = NodeReadableStream;
+}

dev/env/node_modules/@streamparser/json-node/test/utils/testRunner.ts

@@ -0,0 +1,90 @@
+import { Readable } from "stream";
+import JSONParser from "../../src/jsonparser.js";
+import Tokenizer from "../../src/tokenizer.js";
+import TokenParser from "../../src/tokenparser.js";
+import type { ParsedTokenInfo } from "@streamparser/json/utils/types/parsedTokenInfo.js";
+import type { ParsedElementInfo } from "@streamparser/json/utils/types/parsedElementInfo.js";
+
+export type TestData = {
+  value: string | string[] | Iterable<number>;
+  paths?: string[];
+  expected: unknown[];
+};
+
+type ParseableData = string | Iterable<number>;
+type InputData<T> = T | T[] | (() => Generator<T>);
+
+function iterableData<T>(data: InputData<T>): Iterable<T> {
+  if (typeof data === "function") return (data as () => Generator<T>)();
+  if (Array.isArray(data)) return data;
+  return [data];
+}
+
+export async function runJSONParserTest(
+  jsonparser: JSONParser,
+  data: InputData<ParseableData>,
+  onValue: (parsedElementInfo: ParsedElementInfo) => void = () => {
+    /* Do nothing */
+  },
+) {
+  return new Promise((resolve, reject) => {
+    const input = new Readable();
+    input._read = () => {
+      /* Do nothing */
+    };
+    jsonparser.on("data", onValue);
+    jsonparser.on("error", reject);
+    jsonparser.on("end", resolve);
+    input.pipe(jsonparser);
+    for (const value of iterableData(data)) {
+      input.push(value);
+    }
+    input.push(null);
+  });
+}
+
+export async function runTokenizerTest(
+  tokenizer: Tokenizer,
+  data: InputData<ParseableData>,
+  onToken: (parsedElementInfo: ParsedTokenInfo) => void = () => {
+    /* Do nothing */
+  },
+) {
+  return new Promise((resolve, reject) => {
+    const input = new Readable({ objectMode: true });
+    input._read = () => {
+      /* Do nothing */
+    };
+    tokenizer.on("data", onToken);
+    tokenizer.on("error", reject);
+    tokenizer.on("end", resolve);
+    input.pipe(tokenizer);
+    for (const value of iterableData(data)) {
+      input.push(value);
+    }
+    input.push(null);
+  });
+}
+
+export async function runTokenParserTest(
+  tokenParser: TokenParser,
+  data: InputData<Omit<ParsedTokenInfo, "offset">>,
+  onValue: (parsedElementInfo: ParsedElementInfo) => void = () => {
+    /* Do nothing */
+  },
+) {
+  return new Promise((resolve, reject) => {
+    const input = new Readable({ objectMode: true });
+    input._read = () => {
+      /* Do nothing */
+    };
+    tokenParser.on("data", onValue);
+    tokenParser.on("error", reject);
+    tokenParser.on("end", resolve);
+    input.pipe(tokenParser);
+    for (const value of iterableData(data)) {
+      input.push(value);
+    }
+    input.push(null);
+  });
+}