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/@nomicfoundation/hardhat-utils/dist/src/spinner.d.ts

@@ -0,0 +1,46 @@
+export declare const FRAME_INTERVAL_MS = 80;
+export interface ISpinner {
+    readonly isEnabled: boolean;
+    start(): void;
+    stop(): void;
+}
+/**
+ * Optional settings when creating a spinner.
+ */
+export interface SpinnerOptions {
+    /**
+     * Text shown next to the spinner.
+     */
+    text?: string;
+    /**
+     * Stream used to write frames.
+     */
+    stream?: NodeJS.WriteStream;
+    /**
+     * Whether the spinner is enabled.
+     */
+    enabled?: boolean;
+}
+/**
+ * Create a spinner instance.
+ *
+ * @example
+ * ```typescript
+ * const spinner = createSpinner({ text: "Compiling…" });
+ * spinner.start();
+ *
+ * try {
+ *   await compileContracts();
+ *   spinner.stop();
+ *   console.log("Compiled 12 contracts");
+ * } catch (error) {
+ *   spinner.stop();
+ *   console.error("Compilation failed");
+ * }
+ * ```
+ *
+ * @param options  Optional spinner configuration.
+ * @returns {Spinner} A spinner instance.
+ */
+export declare function createSpinner(options?: SpinnerOptions): ISpinner;
+//# sourceMappingURL=spinner.d.ts.map