docs: add README

README.md

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+# AirNDB
+
+**Network debugging via tcpdump/WinDump**
+
+Version: 0.1.2  
+Author: 14816  
+License: MIT  
+Repository: http://git.airlongdian.fun/admin/airndb.git  
+Homepage: https://airlongdian.fun/plugins/airndb
+
+---
+
+## Description
+
+AirNDB helps detect tcpdump or WinDump on first startup, automatically download official WinDump.exe on Windows when no capture tool is available, configure project-local tool.env, use a remote device helper over SSH for remote packet capture, collect bounded packet captures, choose safe BPF filters, save timestamped pcap artifacts, and record network debugging evidence.
+
+## Installation
+
+```bash
+# Add the Air marketplace
+claude plugin marketplace add http://git.airlongdian.fun/admin/airplan.git
+
+# Install this plugin
+claude plugin install airndb
+```
+
+## Usage
+
+- `/airndb - Investigate network issues with packet capture`
+
+For detailed usage, see `commands/airndb.md` in this repository.
+
+## Requirements
+
+- Claude Code CLI or desktop app (latest version recommended)
+- Python 3.8+ (for script-based plugins)
+- Additional dependencies listed in the plugin's skill documentation
+
+## Part of Air Suite
+
+This plugin is part of the [Air workflow suite](http://git.airlongdian.fun/admin/airplan). See the [marketplace README](http://git.airlongdian.fun/admin/airplan) for the full plugin list and installation instructions.
+
+## Support
+
+- Repository: http://git.airlongdian.fun/admin/airndb.git
+- Issues: Open an issue in this repository
+- Homepage: https://airlongdian.fun/plugins/airndb