docs: update README with full feature list and high-res logo

README.md

@@ -1,5 +1,5 @@
 <div align="center">
-  <img src="public/favicon.png" width="80" />
+  <img src="docs/logo.png" width="80" />
   <h1>DBX</h1>
   <p>Open-source, lightweight, cross-platform database management tool.</p>
   <p>
@@ -11,6 +11,8 @@
     <img src="https://img.shields.io/badge/DuckDB-FFF000?logo=duckdb&logoColor=black" />
     <img src="https://img.shields.io/badge/ClickHouse-FFCC01?logo=clickhouse&logoColor=black" />
     <img src="https://img.shields.io/badge/SQL%20Server-CC2927?logo=microsoftsqlserver&logoColor=white" />
+    <img src="https://img.shields.io/badge/MariaDB-003545?logo=mariadb&logoColor=white" />
+    <img src="https://img.shields.io/badge/TiDB-DC150B?logo=tidb&logoColor=white" />
   </p>
   <p>
     English | <a href="README.zh-CN.md">简体中文</a>
@@ -19,20 +21,22 @@
 
 ## Features
 
-- **8 databases** — MySQL, PostgreSQL, SQLite, Redis, MongoDB, DuckDB, ClickHouse, SQL Server
+- **Multi-database** — MySQL, PostgreSQL, SQLite, Redis, MongoDB, DuckDB, ClickHouse, SQL Server, MariaDB, TiDB, OceanBase, openGauss, GaussDB, KingBase, Vastbase, GoldenDB
 - **Schema browser** — Databases, schemas, tables, columns, indexes, foreign keys, triggers
-- **Query editor** — CodeMirror with syntax highlighting, auto-complete, Cmd+Enter execution
-- **Data grid** — Virtual-scrolled table with inline editing, sorting, pagination, column resize
+- **Query editor** — CodeMirror 6 with syntax highlighting, Cmd+Enter execution, Cmd+scroll zoom
+- **AI SQL assistant** — Natural language to SQL, explain, optimize, fix errors (Claude / OpenAI)
+- **Data grid** — Virtual-scrolled table with inline editing, sorting, search, pagination, column resize, row numbers, zebra stripes
 - **Export** — CSV, JSON, Markdown
-- **Redis browser** — Key pattern search, value viewer for all data types
+- **Redis browser** — Key pattern search, value viewer for all data types (String, Hash, List, Set, ZSet)
 - **MongoDB browser** — Document CRUD with pagination
-- **Query history** — Persistent history with search, restore, and one-click copy
+- **Query history** — Persistent history with search, restore, one-click copy
 - **Safety** — Confirmation dialog for DROP / DELETE / TRUNCATE / ALTER
 - **Auto-reconnect** — Transparent retry on connection loss
-- **SSH tunnel** — Connect through SSH port forwarding
-- **Dark mode** — System-aware theme toggle
+- **SSH tunnel** — Key and password authentication
+- **File drag & drop** — Drag .db / .sqlite / .duckdb files to open directly
+- **Dark mode** — Native title bar theme sync
 - **i18n** — English & 简体中文
-- **Tiny** — ~7 MB installer (no bundled Chromium)
+- **Tiny** — ~15 MB installer (no bundled Chromium)
 
 ## Screenshot
 
@@ -40,6 +44,20 @@
   <img src="docs/screenshot.png" width="800" />
 </div>
 
+## Install
+
+Download the latest release from the [Releases](https://github.com/t8y2/dbx/releases) page.
+
+### macOS Note
+
+DBX is not signed with an Apple Developer certificate. On first launch, macOS will block the app. To fix this:
+
+```bash
+xattr -cr /Applications/dbx.app
+```
+
+Or: **System Settings → Privacy & Security → Open Anyway**.
+
 ## Getting Started
 
 ### Prerequisites
@@ -63,20 +81,6 @@ pnpm tauri build
 
 The installer will be in `src-tauri/target/release/bundle/`.
 
-## Install
-
-Download the latest release from the [Releases](https://github.com/t8y2/dbx/releases) page.
-
-### macOS Note
-
-DBX is not signed with an Apple Developer certificate. On first launch, macOS will block the app. To fix this:
-
-```bash
-xattr -cr /Applications/dbx.app
-```
-
-Or: **System Settings → Privacy & Security → Open Anyway**.
-
 ## Tech Stack
 
 | Layer | Technology |

README.zh-CN.md

@@ -1,5 +1,5 @@
 <div align="center">
-  <img src="public/favicon.png" width="80" />
+  <img src="docs/logo.png" width="80" />
   <h1>DBX</h1>
   <p>开源、轻量、跨平台的数据库管理工具。</p>
   <p>
@@ -11,6 +11,8 @@
     <img src="https://img.shields.io/badge/DuckDB-FFF000?logo=duckdb&logoColor=black" />
     <img src="https://img.shields.io/badge/ClickHouse-FFCC01?logo=clickhouse&logoColor=black" />
     <img src="https://img.shields.io/badge/SQL%20Server-CC2927?logo=microsoftsqlserver&logoColor=white" />
+    <img src="https://img.shields.io/badge/MariaDB-003545?logo=mariadb&logoColor=white" />
+    <img src="https://img.shields.io/badge/TiDB-DC150B?logo=tidb&logoColor=white" />
   </p>
   <p>
     <a href="README.md">English</a> | 简体中文
@@ -19,20 +21,22 @@
 
 ## 功能特性
 
-- **8 种数据库** — MySQL、PostgreSQL、SQLite、Redis、MongoDB、DuckDB、ClickHouse、SQL Server
+- **多数据库** — MySQL、PostgreSQL、SQLite、Redis、MongoDB、DuckDB、ClickHouse、SQL Server、MariaDB、TiDB、OceanBase、openGauss、GaussDB、KingBase、Vastbase、GoldenDB
 - **结构浏览** — 数据库、Schema、表、字段、索引、外键、触发器
-- **查询编辑器** — CodeMirror 语法高亮、自动补全、Cmd+Enter 执行
-- **数据表格** — 虚拟滚动、行内编辑、排序、分页、列宽调整
+- **查询编辑器** — CodeMirror 6 语法高亮、Cmd+Enter 执行、Cmd+滚轮缩放
+- **AI SQL 助手** — 自然语言生成 SQL、解释、优化、修复错误（Claude / OpenAI）
+- **数据表格** — 虚拟滚动、行内编辑、排序、搜索、分页、列宽调整、行号、斑马纹
 - **数据导出** — CSV、JSON、Markdown
-- **Redis 浏览器** — 模式匹配搜索，支持全部数据类型查看
+- **Redis 浏览器** — 模式匹配搜索，支持全部数据类型（String、Hash、List、Set、ZSet）
 - **MongoDB 浏览器** — 文档增删改查、分页浏览
 - **查询历史** — 持久化存储，支持搜索、恢复、一键复制
 - **安全防护** — 执行 DROP / DELETE / TRUNCATE / ALTER 时弹出确认对话框
 - **自动重连** — 连接断开后透明重试
-- **SSH 隧道** — 通过 SSH 端口转发连接数据库
-- **深色模式** — 明暗主题一键切换
+- **SSH 隧道** — 支持密钥和密码两种认证方式
+- **文件拖放** — 拖拽 .db / .sqlite / .duckdb 文件到窗口直接打开
+- **深色模式** — 原生标题栏主题同步
 - **多语言** — English & 简体中文
-- **极致轻量** — 安装包仅 ~7 MB（不内嵌 Chromium）
+- **极致轻量** — 安装包约 15 MB（不内嵌 Chromium）
 
 ## 截图
 
@@ -40,6 +44,20 @@
   <img src="docs/screenshot.png" width="800" />
 </div>
 
+## 安装
+
+从 [Releases](https://github.com/t8y2/dbx/releases) 页面下载最新版本。
+
+### macOS 说明
+
+DBX 未使用 Apple 开发者证书签名，首次打开时 macOS 会阻止运行。解决方法：
+
+```bash
+xattr -cr /Applications/dbx.app
+```
+
+或者：**系统设置 → 隐私与安全性 → 仍要打开**。
+
 ## 快速开始
 
 ### 环境要求
@@ -63,20 +81,6 @@ pnpm tauri build
 
 安装包输出在 `src-tauri/target/release/bundle/` 目录。
 
-## 安装
-
-从 [Releases](https://github.com/t8y2/dbx/releases) 页面下载最新版本。
-
-### macOS 说明
-
-DBX 未使用 Apple 开发者证书签名，首次打开时 macOS 会阻止运行。解决方法：
-
-```bash
-xattr -cr /Applications/dbx.app
-```
-
-或者：**系统设置 → 隐私与安全性 → 仍要打开**。
-
 ## 技术栈
 
 | 层级 | 技术 |