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.commonjs/constants/addresses.d.ts

@@ -0,0 +1,7 @@
+/**
+ *  A constant for the zero address.
+ *
+ *  (**i.e.** ``"0x0000000000000000000000000000000000000000"``)
+ */
+export declare const ZeroAddress: string;
+//# sourceMappingURL=addresses.d.ts.map

dev/env/node_modules/ethers/lib.commonjs/constants/addresses.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"addresses.d.ts","sourceRoot":"","sources":["../../src.ts/constants/addresses.ts"],"names":[],"mappings":"AACA;;;;GAIG;AACH,eAAO,MAAM,WAAW,EAAE,MAAqD,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/addresses.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ZeroAddress = void 0;
+/**
+ *  A constant for the zero address.
+ *
+ *  (**i.e.** ``"0x0000000000000000000000000000000000000000"``)
+ */
+exports.ZeroAddress = "0x0000000000000000000000000000000000000000";
+//# sourceMappingURL=addresses.js.map

dev/env/node_modules/ethers/lib.commonjs/constants/addresses.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"addresses.js","sourceRoot":"","sources":["../../src.ts/constants/addresses.ts"],"names":[],"mappings":";;;AACA;;;;GAIG;AACU,QAAA,WAAW,GAAW,4CAA4C,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/hashes.d.ts

@@ -0,0 +1,7 @@
+/**
+ *  A constant for the zero hash.
+ *
+ *  (**i.e.** ``"0x0000000000000000000000000000000000000000000000000000000000000000"``)
+ */
+export declare const ZeroHash: string;
+//# sourceMappingURL=hashes.d.ts.map

dev/env/node_modules/ethers/lib.commonjs/constants/hashes.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"hashes.d.ts","sourceRoot":"","sources":["../../src.ts/constants/hashes.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AACH,eAAO,MAAM,QAAQ,EAAE,MAA6E,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/hashes.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ZeroHash = void 0;
+/**
+ *  A constant for the zero hash.
+ *
+ *  (**i.e.** ``"0x0000000000000000000000000000000000000000000000000000000000000000"``)
+ */
+exports.ZeroHash = "0x0000000000000000000000000000000000000000000000000000000000000000";
+//# sourceMappingURL=hashes.js.map

dev/env/node_modules/ethers/lib.commonjs/constants/hashes.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"hashes.js","sourceRoot":"","sources":["../../src.ts/constants/hashes.ts"],"names":[],"mappings":";;;AAAA;;;;GAIG;AACU,QAAA,QAAQ,GAAW,oEAAoE,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/index.d.ts

@@ -0,0 +1,10 @@
+/**
+ *  Some common constants useful for Ethereum.
+ *
+ *  @_section: api/constants: Constants  [about-constants]
+ */
+export { ZeroAddress } from "./addresses.js";
+export { ZeroHash } from "./hashes.js";
+export { N, WeiPerEther, MaxUint256, MinInt256, MaxInt256 } from "./numbers.js";
+export { EtherSymbol, MessagePrefix } from "./strings.js";
+//# sourceMappingURL=index.d.ts.map

dev/env/node_modules/ethers/lib.commonjs/constants/index.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src.ts/constants/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,WAAW,EAAE,MAAM,gBAAgB,CAAC;AAC7C,OAAO,EAAE,QAAQ,EAAE,MAAM,aAAa,CAAC;AACvC,OAAO,EACH,CAAC,EACD,WAAW,EACX,UAAU,EACV,SAAS,EACT,SAAS,EACZ,MAAM,cAAc,CAAC;AACtB,OAAO,EAAE,WAAW,EAAE,aAAa,EAAE,MAAM,cAAc,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/index.js

@@ -0,0 +1,22 @@
+"use strict";
+/**
+ *  Some common constants useful for Ethereum.
+ *
+ *  @_section: api/constants: Constants  [about-constants]
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MessagePrefix = exports.EtherSymbol = exports.MaxInt256 = exports.MinInt256 = exports.MaxUint256 = exports.WeiPerEther = exports.N = exports.ZeroHash = exports.ZeroAddress = void 0;
+var addresses_js_1 = require("./addresses.js");
+Object.defineProperty(exports, "ZeroAddress", { enumerable: true, get: function () { return addresses_js_1.ZeroAddress; } });
+var hashes_js_1 = require("./hashes.js");
+Object.defineProperty(exports, "ZeroHash", { enumerable: true, get: function () { return hashes_js_1.ZeroHash; } });
+var numbers_js_1 = require("./numbers.js");
+Object.defineProperty(exports, "N", { enumerable: true, get: function () { return numbers_js_1.N; } });
+Object.defineProperty(exports, "WeiPerEther", { enumerable: true, get: function () { return numbers_js_1.WeiPerEther; } });
+Object.defineProperty(exports, "MaxUint256", { enumerable: true, get: function () { return numbers_js_1.MaxUint256; } });
+Object.defineProperty(exports, "MinInt256", { enumerable: true, get: function () { return numbers_js_1.MinInt256; } });
+Object.defineProperty(exports, "MaxInt256", { enumerable: true, get: function () { return numbers_js_1.MaxInt256; } });
+var strings_js_1 = require("./strings.js");
+Object.defineProperty(exports, "EtherSymbol", { enumerable: true, get: function () { return strings_js_1.EtherSymbol; } });
+Object.defineProperty(exports, "MessagePrefix", { enumerable: true, get: function () { return strings_js_1.MessagePrefix; } });
+//# sourceMappingURL=index.js.map

dev/env/node_modules/ethers/lib.commonjs/constants/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src.ts/constants/index.ts"],"names":[],"mappings":";AAAA;;;;GAIG;;;AAEH,+CAA6C;AAApC,2GAAA,WAAW,OAAA;AACpB,yCAAuC;AAA9B,qGAAA,QAAQ,OAAA;AACjB,2CAMsB;AALlB,+FAAA,CAAC,OAAA;AACD,yGAAA,WAAW,OAAA;AACX,wGAAA,UAAU,OAAA;AACV,uGAAA,SAAS,OAAA;AACT,uGAAA,SAAS,OAAA;AAEb,2CAA0D;AAAjD,yGAAA,WAAW,OAAA;AAAE,2GAAA,aAAa,OAAA"}

dev/env/node_modules/ethers/lib.commonjs/constants/numbers.d.ts

@@ -0,0 +1,31 @@
+/**
+ *  A constant for the order N for the secp256k1 curve.
+ *
+ *  (**i.e.** ``0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141n``)
+ */
+export declare const N: bigint;
+/**
+ *  A constant for the number of wei in a single ether.
+ *
+ *  (**i.e.** ``1000000000000000000n``)
+ */
+export declare const WeiPerEther: bigint;
+/**
+ *  A constant for the maximum value for a ``uint256``.
+ *
+ *  (**i.e.** ``0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn``)
+ */
+export declare const MaxUint256: bigint;
+/**
+ *  A constant for the minimum value for an ``int256``.
+ *
+ *  (**i.e.** ``-8000000000000000000000000000000000000000000000000000000000000000n``)
+ */
+export declare const MinInt256: bigint;
+/**
+ *  A constant for the maximum value for an ``int256``.
+ *
+ *  (**i.e.** ``0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn``)
+ */
+export declare const MaxInt256: bigint;
+//# sourceMappingURL=numbers.d.ts.map

dev/env/node_modules/ethers/lib.commonjs/constants/numbers.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"numbers.d.ts","sourceRoot":"","sources":["../../src.ts/constants/numbers.ts"],"names":[],"mappings":"AACA;;;;GAIG;AACH,eAAO,MAAM,CAAC,EAAE,MAAqF,CAAC;AAEtG;;;;GAIG;AACH,eAAO,MAAM,WAAW,EAAE,MAAsC,CAAC;AAEjE;;;;GAIG;AACH,eAAO,MAAM,UAAU,EAAE,MAAqF,CAAC;AAE/G;;;;GAIG;AACH,eAAO,MAAM,SAAS,EAAE,MAAkG,CAAC;AAE3H;;;;GAIG;AACH,eAAO,MAAM,SAAS,EAAE,MAAqF,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/numbers.js

@@ -0,0 +1,34 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MaxInt256 = exports.MinInt256 = exports.MaxUint256 = exports.WeiPerEther = exports.N = void 0;
+/**
+ *  A constant for the order N for the secp256k1 curve.
+ *
+ *  (**i.e.** ``0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141n``)
+ */
+exports.N = BigInt("0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141");
+/**
+ *  A constant for the number of wei in a single ether.
+ *
+ *  (**i.e.** ``1000000000000000000n``)
+ */
+exports.WeiPerEther = BigInt("1000000000000000000");
+/**
+ *  A constant for the maximum value for a ``uint256``.
+ *
+ *  (**i.e.** ``0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn``)
+ */
+exports.MaxUint256 = BigInt("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+/**
+ *  A constant for the minimum value for an ``int256``.
+ *
+ *  (**i.e.** ``-8000000000000000000000000000000000000000000000000000000000000000n``)
+ */
+exports.MinInt256 = BigInt("0x8000000000000000000000000000000000000000000000000000000000000000") * BigInt(-1);
+/**
+ *  A constant for the maximum value for an ``int256``.
+ *
+ *  (**i.e.** ``0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn``)
+ */
+exports.MaxInt256 = BigInt("0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+//# sourceMappingURL=numbers.js.map

dev/env/node_modules/ethers/lib.commonjs/constants/numbers.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"numbers.js","sourceRoot":"","sources":["../../src.ts/constants/numbers.ts"],"names":[],"mappings":";;;AACA;;;;GAIG;AACU,QAAA,CAAC,GAAW,MAAM,CAAC,oEAAoE,CAAC,CAAC;AAEtG;;;;GAIG;AACU,QAAA,WAAW,GAAW,MAAM,CAAC,qBAAqB,CAAC,CAAC;AAEjE;;;;GAIG;AACU,QAAA,UAAU,GAAW,MAAM,CAAC,oEAAoE,CAAC,CAAC;AAE/G;;;;GAIG;AACU,QAAA,SAAS,GAAW,MAAM,CAAC,oEAAoE,CAAC,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC;AAE3H;;;;GAIG;AACU,QAAA,SAAS,GAAW,MAAM,CAAC,oEAAoE,CAAC,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/strings.d.ts

@@ -0,0 +1,13 @@
+/**
+ *  A constant for the ether symbol (normalized using NFKC).
+ *
+ *  (**i.e.** ``"\\u039e"``)
+ */
+export declare const EtherSymbol: string;
+/**
+ *  A constant for the [[link-eip-191]] personal message prefix.
+ *
+ *  (**i.e.** ``"\\x19Ethereum Signed Message:\\n"``)
+ */
+export declare const MessagePrefix: string;
+//# sourceMappingURL=strings.d.ts.map

dev/env/node_modules/ethers/lib.commonjs/constants/strings.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"strings.d.ts","sourceRoot":"","sources":["../../src.ts/constants/strings.ts"],"names":[],"mappings":"AAEA;;;;GAIG;AACH,eAAO,MAAM,WAAW,EAAE,MAAiB,CAAC;AAG5C;;;;GAIG;AACH,eAAO,MAAM,aAAa,EAAE,MAAyC,CAAC"}

dev/env/node_modules/ethers/lib.commonjs/constants/strings.js

@@ -0,0 +1,17 @@
+"use strict";
+// NFKC (composed)             // (decomposed)
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MessagePrefix = exports.EtherSymbol = void 0;
+/**
+ *  A constant for the ether symbol (normalized using NFKC).
+ *
+ *  (**i.e.** ``"\\u039e"``)
+ */
+exports.EtherSymbol = "\u039e"; // "\uD835\uDF63";
+/**
+ *  A constant for the [[link-eip-191]] personal message prefix.
+ *
+ *  (**i.e.** ``"\\x19Ethereum Signed Message:\\n"``)
+ */
+exports.MessagePrefix = "\x19Ethereum Signed Message:\n";
+//# sourceMappingURL=strings.js.map

dev/env/node_modules/ethers/lib.commonjs/constants/strings.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"strings.js","sourceRoot":"","sources":["../../src.ts/constants/strings.ts"],"names":[],"mappings":";AAAA,8CAA8C;;;AAE9C;;;;GAIG;AACU,QAAA,WAAW,GAAW,QAAQ,CAAC,CAAE,kBAAkB;AAGhE;;;;GAIG;AACU,QAAA,aAAa,GAAW,gCAAgC,CAAC"}