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/lib.esm/utils/data.d.ts

@@ -0,0 +1,93 @@
+/**
+ *  A [[HexString]] whose length is even, which ensures it is a valid
+ *  representation of binary data.
+ */
+export type DataHexString = string;
+/**
+ *  A string which is prefixed with ``0x`` and followed by any number
+ *  of case-agnostic hexadecimal characters.
+ *
+ *  It must match the regular expression ``/0x[0-9A-Fa-f]*\/``.
+ */
+export type HexString = string;
+/**
+ *  An object that can be used to represent binary data.
+ */
+export type BytesLike = DataHexString | Uint8Array;
+/**
+ *  Get a typed Uint8Array for %%value%%. If already a Uint8Array
+ *  the original %%value%% is returned; if a copy is required use
+ *  [[getBytesCopy]].
+ *
+ *  @see: getBytesCopy
+ */
+export declare function getBytes(value: BytesLike, name?: string): Uint8Array;
+/**
+ *  Get a typed Uint8Array for %%value%%, creating a copy if necessary
+ *  to prevent any modifications of the returned value from being
+ *  reflected elsewhere.
+ *
+ *  @see: getBytes
+ */
+export declare function getBytesCopy(value: BytesLike, name?: string): Uint8Array;
+/**
+ *  Returns true if %%value%% is a valid [[HexString]].
+ *
+ *  If %%length%% is ``true`` or a //number//, it also checks that
+ *  %%value%% is a valid [[DataHexString]] of %%length%% (if a //number//)
+ *  bytes of data (e.g. ``0x1234`` is 2 bytes).
+ */
+export declare function isHexString(value: any, length?: number | boolean): value is `0x${string}`;
+/**
+ *  Returns true if %%value%% is a valid representation of arbitrary
+ *  data (i.e. a valid [[DataHexString]] or a Uint8Array).
+ */
+export declare function isBytesLike(value: any): value is BytesLike;
+/**
+ *  Returns a [[DataHexString]] representation of %%data%%.
+ */
+export declare function hexlify(data: BytesLike): string;
+/**
+ *  Returns a [[DataHexString]] by concatenating all values
+ *  within %%data%%.
+ */
+export declare function concat(datas: ReadonlyArray<BytesLike>): string;
+/**
+ *  Returns the length of %%data%%, in bytes.
+ */
+export declare function dataLength(data: BytesLike): number;
+/**
+ *  Returns a [[DataHexString]] by slicing %%data%% from the %%start%%
+ *  offset to the %%end%% offset.
+ *
+ *  By default %%start%% is 0 and %%end%% is the length of %%data%%.
+ */
+export declare function dataSlice(data: BytesLike, start?: number, end?: number): string;
+/**
+ *  Return the [[DataHexString]] result by stripping all **leading**
+ ** zero bytes from %%data%%.
+ */
+export declare function stripZerosLeft(data: BytesLike): string;
+/**
+ *  Return the [[DataHexString]] of %%data%% padded on the **left**
+ *  to %%length%% bytes.
+ *
+ *  If %%data%% already exceeds %%length%%, a [[BufferOverrunError]] is
+ *  thrown.
+ *
+ *  This pads data the same as **values** are in Solidity
+ *  (e.g. ``uint128``).
+ */
+export declare function zeroPadValue(data: BytesLike, length: number): string;
+/**
+ *  Return the [[DataHexString]] of %%data%% padded on the **right**
+ *  to %%length%% bytes.
+ *
+ *  If %%data%% already exceeds %%length%%, a [[BufferOverrunError]] is
+ *  thrown.
+ *
+ *  This pads data the same as **bytes** are in Solidity
+ *  (e.g. ``bytes16``).
+ */
+export declare function zeroPadBytes(data: BytesLike, length: number): string;
+//# sourceMappingURL=data.d.ts.map