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/ethers.ts

@@ -0,0 +1,221 @@
+
+
+/////////////////////////////
+//
+
+export { version } from "./_version.js";
+
+export {
+    decodeBytes32String, encodeBytes32String,
+
+    AbiCoder,
+    ConstructorFragment, ErrorFragment, EventFragment, Fragment, FallbackFragment, FunctionFragment, NamedFragment, ParamType, StructFragment,
+
+    checkResultErrors, ErrorDescription, Indexed, Interface, LogDescription, Result, TransactionDescription,
+    Typed,
+} from "./abi/index.js";
+
+export {
+    getAddress, getIcapAddress,
+    getCreateAddress, getCreate2Address,
+    isAddressable, isAddress, resolveAddress
+} from "./address/index.js";
+
+export {
+    ZeroAddress,
+    WeiPerEther, MaxUint256, MinInt256, MaxInt256, N,
+    ZeroHash,
+    EtherSymbol, MessagePrefix
+} from "./constants/index.js";
+
+export {
+    BaseContract, Contract,
+    ContractFactory,
+    ContractEventPayload, ContractTransactionReceipt, ContractTransactionResponse, ContractUnknownEventPayload, EventLog, UndecodedEventLog
+} from "./contract/index.js";
+
+export {
+    computeHmac,
+    randomBytes,
+    keccak256,
+    ripemd160,
+    sha256, sha512,
+    pbkdf2,
+    scrypt, scryptSync,
+    lock,
+    Signature, SigningKey
+} from "./crypto/index.js";
+
+export {
+    id,
+    ensNormalize, isValidName, namehash, dnsEncode,
+    hashAuthorization, verifyAuthorization,
+    hashMessage, verifyMessage,
+    solidityPacked, solidityPackedKeccak256, solidityPackedSha256,
+    TypedDataEncoder,
+    verifyTypedData
+} from "./hash/index.js";
+
+export {
+    getDefaultProvider,
+
+    Block, FeeData, Log, TransactionReceipt, TransactionResponse,
+
+    AbstractSigner, NonceManager, VoidSigner,
+
+    AbstractProvider,
+
+    FallbackProvider,
+    JsonRpcApiProvider, JsonRpcProvider, JsonRpcSigner,
+
+    BrowserProvider,
+
+    AlchemyProvider, AnkrProvider, BlockscoutProvider, ChainstackProvider,
+    CloudflareProvider, EtherscanProvider, InfuraProvider,
+    InfuraWebSocketProvider, PocketProvider, QuickNodeProvider,
+
+    IpcSocketProvider, SocketProvider, WebSocketProvider,
+
+    EnsResolver,
+    Network,
+
+    EnsPlugin, EtherscanPlugin,
+    FeeDataNetworkPlugin, FetchUrlFeeDataNetworkPlugin,
+    GasCostPlugin, NetworkPlugin, MulticoinProviderPlugin,
+
+    SocketBlockSubscriber, SocketEventSubscriber, SocketPendingSubscriber,
+    SocketSubscriber, UnmanagedSubscriber,
+
+    copyRequest, showThrottleMessage
+} from "./providers/index.js";
+
+export {
+    accessListify, authorizationify,
+    computeAddress, recoverAddress,
+    Transaction
+} from "./transaction/index.js";
+
+export {
+    decodeBase58, encodeBase58,
+    decodeBase64, encodeBase64,
+    concat, dataLength, dataSlice, getBytes, getBytesCopy, hexlify,
+    isHexString, isBytesLike, stripZerosLeft, zeroPadBytes, zeroPadValue,
+    defineProperties, resolveProperties,
+    assert, assertArgument, assertArgumentCount, assertNormalize, assertPrivate,
+    makeError,
+    isCallException, isError,
+    EventPayload,
+    FetchRequest, FetchResponse, FetchCancelSignal,
+    FixedNumber,
+    getBigInt, getNumber, getUint, toBeArray, toBigInt, toBeHex, toNumber, toQuantity,
+    fromTwos, toTwos, mask,
+    formatEther, parseEther, formatUnits, parseUnits,
+    toUtf8Bytes, toUtf8CodePoints, toUtf8String,
+    Utf8ErrorFuncs,
+    decodeRlp, encodeRlp,
+    uuidV4,
+} from "./utils/index.js";
+
+export {
+    Mnemonic,
+    BaseWallet, HDNodeWallet, HDNodeVoidWallet,
+    Wallet,
+
+    defaultPath,
+
+    getAccountPath, getIndexedAccountPath,
+    isCrowdsaleJson, isKeystoreJson,
+
+    decryptCrowdsaleJson, decryptKeystoreJsonSync, decryptKeystoreJson,
+    encryptKeystoreJson, encryptKeystoreJsonSync,
+} from "./wallet/index.js";
+
+export {
+    Wordlist, LangEn, WordlistOwl, WordlistOwlA, wordlists
+} from "./wordlists/index.js";
+
+
+
+/////////////////////////////
+// Types
+
+export type {
+    JsonFragment, JsonFragmentType,
+    FormatType, FragmentType,
+    InterfaceAbi,
+    ParamTypeWalkFunc, ParamTypeWalkAsyncFunc
+} from "./abi/index.js";
+
+export type {
+    Addressable, AddressLike, NameResolver
+} from "./address/index.js";
+
+export type {
+    ConstantContractMethod, ContractEvent, ContractEventArgs, ContractEventName,
+    ContractInterface, ContractMethod, ContractMethodArgs, ContractTransaction,
+    DeferredTopicFilter, Overrides,
+    BaseContractMethod, ContractDeployTransaction, PostfixOverrides,
+    WrappedFallback
+} from "./contract/index.js";
+
+export type { ProgressCallback, SignatureLike } from "./crypto/index.js";
+
+export type {
+    AuthorizationRequest, TypedDataDomain, TypedDataField
+} from "./hash/index.js";
+
+export type {
+    Provider, Signer,
+
+    CommunityResourcable,
+
+    AbstractProviderOptions, BrowserProviderOptions, FallbackProviderOptions,
+
+    AbstractProviderPlugin, BlockParams, BlockTag, BrowserDiscoverOptions,
+    ContractRunner, DebugEventBrowserProvider, Eip1193Provider,
+    Eip6963ProviderInfo, EventFilter, Filter, FilterByBlockHash,
+    GasCostParameters, JsonRpcApiProviderOptions, JsonRpcError,
+    JsonRpcPayload, JsonRpcResult, JsonRpcTransactionRequest, LogParams,
+    MinedBlock, MinedTransactionResponse, Networkish, OrphanFilter,
+    PerformActionFilter, PerformActionRequest, PerformActionTransaction,
+    PreparedTransactionRequest, ProviderEvent, Subscriber, Subscription,
+    TopicFilter, TransactionReceiptParams, TransactionRequest,
+    TransactionResponseParams, WebSocketCreator, WebSocketLike
+} from "./providers/index.js";
+
+export type {
+    AccessList, AccessListish, AccessListEntry,
+    Authorization, AuthorizationLike,
+    Blob, BlobLike, KzgLibrary, KzgLibraryLike,
+    TransactionLike
+} from "./transaction/index.js";
+
+export type {
+    BytesLike,
+    BigNumberish, Numeric,
+    ErrorCode,
+    FixedFormat,
+    Utf8ErrorFunc, UnicodeNormalizationForm, Utf8ErrorReason,
+    RlpStructuredData, RlpStructuredDataish,
+
+    GetUrlResponse,
+    FetchPreflightFunc, FetchProcessFunc, FetchRetryFunc,
+    FetchGatewayFunc, FetchGetUrlFunc,
+
+    EthersError, UnknownError, NotImplementedError, UnsupportedOperationError, NetworkError,
+    ServerError, TimeoutError, BadDataError, CancelledError, BufferOverrunError,
+    NumericFaultError, InvalidArgumentError, MissingArgumentError, UnexpectedArgumentError,
+    CallExceptionError, InsufficientFundsError, NonceExpiredError, OffchainFaultError,
+    ReplacementUnderpricedError, TransactionReplacedError, UnconfiguredNameError,
+    ActionRejectedError,
+    CodedEthersError,
+
+    CallExceptionAction, CallExceptionTransaction,
+    EventEmitterable, Listener
+} from "./utils/index.js";
+
+export type {
+    CrowdsaleAccount, KeystoreAccount, EncryptOptions
+} from "./wallet/index.js";
+
+// dummy change; to pick-up ws security issue changes