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/src.ts/contract/factory.ts

@@ -0,0 +1,143 @@
+
+import { Interface } from "../abi/index.js";
+import { getCreateAddress } from "../address/index.js";
+import {
+    concat, defineProperties, getBytes, hexlify,
+    assert, assertArgument
+} from "../utils/index.js";
+
+import { BaseContract, copyOverrides, resolveArgs } from "./contract.js";
+
+import type { InterfaceAbi } from "../abi/index.js";
+import type { Addressable } from "../address/index.js";
+import type { ContractRunner } from "../providers/index.js";
+import type { BytesLike } from "../utils/index.js";
+
+import type {
+    ContractInterface, ContractMethodArgs, ContractDeployTransaction,
+} from "./types.js";
+import type { ContractTransactionResponse } from "./wrappers.js";
+
+
+// A = Arguments to the constructor
+// I = Interface of deployed contracts
+
+/**
+ *  A **ContractFactory** is used to deploy a Contract to the blockchain.
+ */
+export class ContractFactory<A extends Array<any> = Array<any>, I = BaseContract> {
+
+    /**
+     *  The Contract Interface.
+     */
+    readonly interface!: Interface;
+
+    /**
+     *  The Contract deployment bytecode. Often called the initcode.
+     */
+    readonly bytecode!: string;
+
+    /**
+     *  The ContractRunner to deploy the Contract as.
+     */
+    readonly runner!: null | ContractRunner;
+
+    /**
+     *  Create a new **ContractFactory** with %%abi%% and %%bytecode%%,
+     *  optionally connected to %%runner%%.
+     *
+     *  The %%bytecode%% may be the ``bytecode`` property within the
+     *  standard Solidity JSON output.
+     */
+    constructor(abi: Interface | InterfaceAbi, bytecode: BytesLike | { object: string }, runner?: null | ContractRunner) {
+        const iface = Interface.from(abi);
+
+        // Dereference Solidity bytecode objects and allow a missing `0x`-prefix
+        if (bytecode instanceof Uint8Array) {
+            bytecode = hexlify(getBytes(bytecode));
+        } else {
+            if (typeof(bytecode) === "object") { bytecode = bytecode.object; }
+            if (!bytecode.startsWith("0x")) { bytecode = "0x" + bytecode; }
+            bytecode = hexlify(getBytes(bytecode));
+        }
+
+        defineProperties<ContractFactory>(this, {
+            bytecode, interface: iface, runner: (runner || null)
+        });
+    }
+
+    attach(target: string | Addressable): BaseContract & Omit<I, keyof BaseContract> {
+        return new (<any>BaseContract)(target, this.interface, this.runner);
+    }
+
+    /**
+     *  Resolves to the transaction to deploy the contract, passing %%args%%
+     *  into the constructor.
+     */
+    async getDeployTransaction(...args: ContractMethodArgs<A>): Promise<ContractDeployTransaction> {
+        let overrides: Omit<ContractDeployTransaction, "data"> = { };
+
+        const fragment = this.interface.deploy;
+
+        if (fragment.inputs.length + 1 === args.length) {
+            overrides = await copyOverrides(args.pop());
+        }
+
+        if (fragment.inputs.length !== args.length) {
+            throw new Error("incorrect number of arguments to constructor");
+        }
+
+        const resolvedArgs = await resolveArgs(this.runner, fragment.inputs, args);
+
+        const data = concat([ this.bytecode, this.interface.encodeDeploy(resolvedArgs) ]);
+        return Object.assign({ }, overrides, { data });
+    }
+
+    /**
+     *  Resolves to the Contract deployed by passing %%args%% into the
+     *  constructor.
+     *
+     *  This will resolve to the Contract before it has been deployed to the
+     *  network, so the [[BaseContract-waitForDeployment]] should be used before
+     *  sending any transactions to it.
+     */
+    async deploy(...args: ContractMethodArgs<A>): Promise<BaseContract & { deploymentTransaction(): ContractTransactionResponse } & Omit<I, keyof BaseContract>> {
+        const tx = await this.getDeployTransaction(...args);
+
+        assert(this.runner && typeof(this.runner.sendTransaction) === "function",
+            "factory runner does not support sending transactions", "UNSUPPORTED_OPERATION", {
+            operation: "sendTransaction" });
+
+        const sentTx = await this.runner.sendTransaction(tx);
+        const address = getCreateAddress(sentTx);
+        return new (<any>BaseContract)(address, this.interface, this.runner, sentTx);
+    }
+
+    /**
+     *  Return a new **ContractFactory** with the same ABI and bytecode,
+     *  but connected to %%runner%%.
+     */
+    connect(runner: null | ContractRunner): ContractFactory<A, I> {
+        return new ContractFactory(this.interface, this.bytecode, runner);
+    }
+
+    /**
+     *  Create a new **ContractFactory** from the standard Solidity JSON output.
+     */
+    static fromSolidity<A extends Array<any> = Array<any>, I = ContractInterface>(output: any, runner?: ContractRunner): ContractFactory<A, I> {
+        assertArgument(output != null, "bad compiler output", "output", output);
+
+        if (typeof(output) === "string") { output = JSON.parse(output); }
+
+        const abi = output.abi;
+
+        let bytecode = "";
+        if (output.bytecode) {
+            bytecode = output.bytecode;
+        } else if (output.evm && output.evm.bytecode) {
+            bytecode = output.evm.bytecode;
+        }
+
+        return new this(abi, bytecode, runner);
+    }
+}