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/micro-eth-signer/net/ens.js

@@ -0,0 +1,82 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.namehash = namehash;
+const sha3_1 = require("@noble/hashes/sha3");
+const utils_1 = require("@noble/hashes/utils");
+const decoder_ts_1 = require("../abi/decoder.js");
+const utils_ts_1 = require("../utils.js");
+// No support for IDN names
+function namehash(address) {
+    let res = new Uint8Array(32);
+    if (!address)
+        return res;
+    for (let label of address.split('.').reverse())
+        res = (0, sha3_1.keccak_256)((0, utils_1.concatBytes)(res, (0, sha3_1.keccak_256)(label)));
+    return res;
+}
+class ENS {
+    constructor(net) {
+        this.net = net;
+    }
+    async getResolver(name) {
+        const contract = (0, decoder_ts_1.createContract)(ENS.REGISTRY_CONTRACT, this.net, ENS.REGISTRY);
+        const res = await contract.resolver.call(namehash(name));
+        if (res === ENS.ADDRESS_ZERO)
+            return;
+        return res;
+    }
+    async nameToAddress(name) {
+        const resolver = await this.getResolver(name);
+        if (!resolver)
+            return;
+        const contract = (0, decoder_ts_1.createContract)(ENS.RESOLVER_CONTRACT, this.net, resolver);
+        const addr = await contract.addr.call(namehash(name));
+        if (addr === ENS.ADDRESS_ZERO)
+            return;
+        return addr;
+    }
+    async addressToName(address) {
+        const addrDomain = `${(0, utils_ts_1.strip0x)(address).toLowerCase()}.addr.reverse`;
+        const resolver = await this.getResolver(addrDomain);
+        if (!resolver)
+            return;
+        const contract = (0, decoder_ts_1.createContract)(ENS.RESOLVER_CONTRACT, this.net, resolver);
+        const name = await contract.name.call(namehash(addrDomain));
+        if (!name)
+            return;
+        // From spec: ENS does not enforce accuracy of reverse records -
+        // anyone may claim that the name for their address is 'alice.eth'.
+        // To be certain the claim is accurate, you must always perform a forward
+        // resolution for the returned name and check whether it matches the original address.
+        const realAddr = await this.nameToAddress(name);
+        if (realAddr !== address)
+            return;
+        return name;
+    }
+}
+ENS.ADDRESS_ZERO = '0x0000000000000000000000000000000000000000';
+ENS.REGISTRY = '0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e';
+ENS.REGISTRY_CONTRACT = [
+    {
+        name: 'resolver',
+        type: 'function',
+        inputs: [{ name: 'node', type: 'bytes32' }],
+        outputs: [{ type: 'address' }],
+    },
+];
+ENS.RESOLVER_CONTRACT = [
+    {
+        name: 'addr',
+        type: 'function',
+        inputs: [{ name: 'node', type: 'bytes32' }],
+        outputs: [{ type: 'address' }],
+    },
+    {
+        name: 'name',
+        type: 'function',
+        inputs: [{ name: 'node', type: 'bytes32' }],
+        outputs: [{ type: 'string' }],
+    },
+];
+exports.default = ENS;
+//# sourceMappingURL=ens.js.map