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/providers/format.ts

@@ -0,0 +1,335 @@
+/**
+ *  @_ignore
+ */
+import { getAddress, getCreateAddress } from "../address/index.js";
+import { Signature } from "../crypto/index.js"
+import { accessListify } from "../transaction/index.js";
+import {
+    getBigInt, getNumber, hexlify, isHexString, zeroPadValue,
+    assert, assertArgument
+} from "../utils/index.js";
+
+import type { SignatureLike } from "../crypto/index.js"
+import type {
+    BlockParams, LogParams,
+    TransactionReceiptParams, TransactionResponseParams,
+} from "./formatting.js";
+
+
+const BN_0 = BigInt(0);
+
+export type FormatFunc = (value: any) => any;
+
+export function allowNull(format: FormatFunc, nullValue?: any): FormatFunc {
+    return (function(value: any) {
+        if (value == null) { return nullValue; }
+        return format(value);
+    });
+}
+
+export function arrayOf(format: FormatFunc, allowNull?: boolean): FormatFunc {
+    return ((array: any) => {
+        if (allowNull && array == null) { return null; }
+        if (!Array.isArray(array)) { throw new Error("not an array"); }
+        return array.map((i) => format(i));
+    });
+}
+
+// Requires an object which matches a fleet of other formatters
+// Any FormatFunc may return `undefined` to have the value omitted
+// from the result object. Calls preserve `this`.
+export function object(format: Record<string, FormatFunc>, altNames?: Record<string, Array<string>>): FormatFunc {
+    return ((value: any) => {
+        const result: any = { };
+        for (const key in format) {
+            let srcKey = key;
+            if (altNames && key in altNames && !(srcKey in value)) {
+                for (const altKey of altNames[key]) {
+                    if (altKey in value) {
+                        srcKey = altKey;
+                        break;
+                    }
+                }
+            }
+
+            try {
+                const nv = format[key](value[srcKey]);
+                if (nv !== undefined) { result[key] = nv; }
+            } catch (error) {
+                const message = (error instanceof Error) ? error.message: "not-an-error";
+                assert(false, `invalid value for value.${ key } (${ message })`, "BAD_DATA", { value })
+            }
+        }
+        return result;
+    });
+}
+
+export function formatBoolean(value: any): boolean {
+    switch (value) {
+        case true: case "true":
+            return true;
+        case false: case "false":
+            return false;
+    }
+    assertArgument(false, `invalid boolean; ${ JSON.stringify(value) }`, "value", value);
+}
+
+export function formatData(value: string): string {
+    assertArgument(isHexString(value, true), "invalid data", "value", value);
+    return value;
+}
+
+export function formatHash(value: any): string {
+    assertArgument(isHexString(value, 32), "invalid hash", "value", value);
+    return value;
+}
+
+export function formatUint256(value: any): string {
+    if (!isHexString(value)) {
+        throw new Error("invalid uint256");
+    }
+    return zeroPadValue(value, 32);
+}
+
+const _formatLog = object({
+    address: getAddress,
+    blockHash: formatHash,
+    blockNumber: getNumber,
+    data: formatData,
+    index: getNumber,
+    removed: allowNull(formatBoolean, false),
+    topics: arrayOf(formatHash),
+    transactionHash: formatHash,
+    transactionIndex: getNumber,
+}, {
+    index: [ "logIndex" ]
+});
+
+export function formatLog(value: any): LogParams {
+    return _formatLog(value);
+}
+
+const _formatBlock = object({
+    hash: allowNull(formatHash),
+    parentHash: formatHash,
+    parentBeaconBlockRoot: allowNull(formatHash, null),
+
+    number: getNumber,
+
+    timestamp: getNumber,
+    nonce: allowNull(formatData),
+    difficulty: getBigInt,
+
+    gasLimit: getBigInt,
+    gasUsed: getBigInt,
+
+    stateRoot: allowNull(formatHash, null),
+    receiptsRoot: allowNull(formatHash, null),
+
+    blobGasUsed: allowNull(getBigInt, null),
+    excessBlobGas: allowNull(getBigInt, null),
+
+    miner: allowNull(getAddress),
+    prevRandao: allowNull(formatHash, null),
+    extraData: formatData,
+
+    baseFeePerGas: allowNull(getBigInt)
+}, {
+    prevRandao: [ "mixHash" ]
+});
+
+export function formatBlock(value: any): BlockParams {
+    const result = _formatBlock(value);
+    result.transactions = value.transactions.map((tx: string | TransactionResponseParams) => {
+        if (typeof(tx) === "string") { return tx; }
+        return formatTransactionResponse(tx);
+    });
+    return result;
+}
+
+const _formatReceiptLog = object({
+    transactionIndex: getNumber,
+    blockNumber: getNumber,
+    transactionHash: formatHash,
+    address: getAddress,
+    topics: arrayOf(formatHash),
+    data: formatData,
+    index: getNumber,
+    blockHash: formatHash,
+}, {
+    index: [ "logIndex" ]
+});
+
+export function formatReceiptLog(value: any): LogParams {
+    return _formatReceiptLog(value);
+}
+
+const _formatTransactionReceipt = object({
+    to: allowNull(getAddress, null),
+    from: allowNull(getAddress, null),
+    contractAddress: allowNull(getAddress, null),
+    // should be allowNull(hash), but broken-EIP-658 support is handled in receipt
+    index: getNumber,
+    root: allowNull(hexlify),
+    gasUsed: getBigInt,
+    blobGasUsed: allowNull(getBigInt, null),
+    logsBloom: allowNull(formatData),
+    blockHash: formatHash,
+    hash: formatHash,
+    logs: arrayOf(formatReceiptLog),
+    blockNumber: getNumber,
+    //confirmations: allowNull(getNumber, null),
+    cumulativeGasUsed: getBigInt,
+    effectiveGasPrice: allowNull(getBigInt),
+    blobGasPrice: allowNull(getBigInt, null),
+    status: allowNull(getNumber),
+    type: allowNull(getNumber, 0)
+}, {
+    effectiveGasPrice: [ "gasPrice" ],
+    hash: [ "transactionHash" ],
+    index: [ "transactionIndex" ],
+});
+
+export function formatTransactionReceipt(value: any): TransactionReceiptParams {
+    return _formatTransactionReceipt(value);
+}
+
+export function formatTransactionResponse(value: any): TransactionResponseParams {
+
+    // Some clients (TestRPC) do strange things like return 0x0 for the
+    // 0 address; correct this to be a real address
+    if (value.to && getBigInt(value.to) === BN_0) {
+        value.to = "0x0000000000000000000000000000000000000000";
+    }
+
+    const result = object({
+        hash: formatHash,
+
+        // Some nodes do not return this, usually test nodes (like Ganache)
+        index: allowNull(getNumber, undefined),
+
+        type: (value: any) => {
+            if (value === "0x" || value == null) { return 0; }
+            return getNumber(value);
+        },
+        accessList: allowNull(accessListify, null),
+        blobVersionedHashes: allowNull(arrayOf(formatHash, true), null),
+
+        authorizationList: allowNull(arrayOf((v: any) => {
+            let sig: SignatureLike;
+            if (v.signature) {
+                sig = v.signature;
+
+            } else {
+                let yParity = v.yParity;
+                if (yParity === "0x1b") {
+                    yParity = 0;
+                } else if (yParity === "0x1c") {
+                    yParity = 1;
+                }
+                sig = Object.assign({ }, v, { yParity });
+            }
+
+            return {
+                address: getAddress(v.address),
+                chainId: getBigInt(v.chainId),
+                nonce: getBigInt(v.nonce),
+                signature: Signature.from(sig)
+            };
+        }, false), null),
+
+        blockHash: allowNull(formatHash, null),
+        blockNumber: allowNull(getNumber, null),
+        transactionIndex: allowNull(getNumber, null),
+
+        from: getAddress,
+
+        // either (gasPrice) or (maxPriorityFeePerGas + maxFeePerGas) must be set
+        gasPrice: allowNull(getBigInt),
+        maxPriorityFeePerGas: allowNull(getBigInt),
+        maxFeePerGas: allowNull(getBigInt),
+        maxFeePerBlobGas: allowNull(getBigInt, null),
+
+        gasLimit: getBigInt,
+        to: allowNull(getAddress, null),
+        value: getBigInt,
+        nonce: getNumber,
+        data: formatData,
+
+        creates: allowNull(getAddress, null),
+
+        chainId: allowNull(getBigInt, null)
+    }, {
+        data: [ "input" ],
+        gasLimit: [ "gas" ],
+        index: [ "transactionIndex" ]
+    })(value);
+
+    // If to and creates are empty, populate the creates from the value
+    if (result.to == null && result.creates == null) {
+        result.creates = getCreateAddress(result);
+    }
+
+    // @TODO: Check fee data
+
+    // Add an access list to supported transaction types
+    if ((value.type === 1 || value.type === 2) && value.accessList == null) {
+        result.accessList = [ ];
+    }
+
+    // Compute the signature
+    if (value.signature) {
+        result.signature = Signature.from(value.signature);
+    } else {
+        result.signature = Signature.from(value);
+    }
+
+    // Some backends omit ChainId on legacy transactions, but we can compute it
+    if (result.chainId == null) {
+        const chainId = result.signature.legacyChainId;
+        if (chainId != null) { result.chainId = chainId; }
+    }
+
+
+    // @TODO: check chainID
+    /*
+    if (value.chainId != null) {
+        let chainId = value.chainId;
+
+        if (isHexString(chainId)) {
+            chainId = BigNumber.from(chainId).toNumber();
+        }
+
+        result.chainId = chainId;
+
+    } else {
+        let chainId = value.networkId;
+
+        // geth-etc returns chainId
+        if (chainId == null && result.v == null) {
+            chainId = value.chainId;
+        }
+
+        if (isHexString(chainId)) {
+            chainId = BigNumber.from(chainId).toNumber();
+        }
+
+        if (typeof(chainId) !== "number" && result.v != null) {
+            chainId = (result.v - 35) / 2;
+            if (chainId < 0) { chainId = 0; }
+            chainId = parseInt(chainId);
+        }
+
+        if (typeof(chainId) !== "number") { chainId = 0; }
+
+        result.chainId = chainId;
+    }
+    */
+
+    // 0x0000... should actually be null
+    if (result.blockHash && getBigInt(result.blockHash) === BN_0) {
+        result.blockHash = null;
+    }
+
+    return result;
+}