docs(readme): refine project tagline

Author: ymkiux

README.md

@@ -1,10 +1,10 @@
-<div align="center">
+<div align="center">
 
 <img src="site/.vitepress/public/images/logo.png" alt="Codex Mate logo" width="180" />
 
 # Codex Mate
 
-**Local-first control panel for Codex / Claude Code / OpenClaw configs, sessions, and usage analytics.**
+**Local-first control panel for Codex / Claude Code / OpenClaw — manage configs, sessions, skills, and usage analytics.**
 
 [![Build](https://img.shields.io/github/actions/workflow/status/SakuraByteCore/codexmate/release.yml?label=build&style=flat)](https://github.com/SakuraByteCore/codexmate/actions/workflows/release.yml)
 [![Version](https://img.shields.io/npm/v/codexmate?label=version&style=flat)](https://www.npmjs.com/package/codexmate)

README.zh.md

@@ -4,7 +4,7 @@
 
 # Codex Mate
 
-**Codex / Claude Code / OpenClaw 的本地控制台：配置、会话与 Usage 统计一体化管理。**
+**Codex / Claude Code / OpenClaw 的本地控制台：配置、会话、Skills 与 Usage 统计一体化管理。**
 
 [![Build](https://img.shields.io/github/actions/workflow/status/SakuraByteCore/codexmate/release.yml?label=build&style=flat)](https://github.com/SakuraByteCore/codexmate/actions/workflows/release.yml)
 [![Version](https://img.shields.io/npm/v/codexmate?label=version&style=flat)](https://www.npmjs.com/package/codexmate)