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/@noble/curves/bn254.js

@@ -0,0 +1,25 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.bn254 = void 0;
+/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */
+const sha256_1 = require("@noble/hashes/sha256");
+const weierstrass_js_1 = require("./abstract/weierstrass.js");
+const _shortw_utils_js_1 = require("./_shortw_utils.js");
+const modular_js_1 = require("./abstract/modular.js");
+/**
+ * bn254 pairing-friendly curve.
+ * Previously known as alt_bn_128, when it had 128-bit security.
+ * Recent research shown it's weaker, the naming has been adjusted to its prime bit count.
+ * https://github.com/zcash/zcash/issues/2502
+ */
+exports.bn254 = (0, weierstrass_js_1.weierstrass)({
+    a: BigInt(0),
+    b: BigInt(3),
+    Fp: (0, modular_js_1.Field)(BigInt('0x30644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd47')),
+    n: BigInt('0x30644e72e131a029b85045b68181585d2833e84879b9709143e1f593f0000001'),
+    Gx: BigInt(1),
+    Gy: BigInt(2),
+    h: BigInt(1),
+    ...(0, _shortw_utils_js_1.getHash)(sha256_1.sha256),
+});
+//# sourceMappingURL=bn254.js.map