Initial commit: Complete工时统计系统 implementation

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Repository Overview
+This repository is a newly initialized Node.js project focused on time-related functionality (exact scope TBD). It currently contains only core configuration files with no source code, tests, or build tools implemented yet.
+
+## Core Technologies
+- **Node.js**: JavaScript runtime environment (type: commonjs)
+- **npm**: Package manager (no dependencies installed yet)
+
+## Key Commands
+As the project is in its early stages, only basic npm commands are available:
+
+```bash
+# Initialize npm and install dependencies (when package.json evolves)
+npm install
+
+# Run tests (placeholder script currently)
+npm test
+```
+
+Future instances should update this section with actual commands for:
+1. Building/linting (e.g., with TypeScript, ESLint)
+2. Testing (e.g., with Jest, Mocha)
+3. Development workflows (e.g., nodemon for hot reloading)
+
+## Architecture
+No code architecture exists yet. As the repository evolves, document the high-level architecture here, focusing on:
+- Major components for time-related functionality
+- Core data models and algorithms
+- Integration with external libraries or APIs (if any)