fix: Add debounced Undo/Redo system to avoid character-by-character history

- Add debounced state updates for title and content (500ms delay)
- Immediate UI updates with delayed history saving
- Prevent one-letter-per-undo issue
- Add cleanup for debounce timers on unmount

keep-notes/README.md

@@ -0,0 +1,104 @@
+# Keep Notes - Google Keep Clone
+
+A beautiful and feature-rich Google Keep clone built with modern web technologies.
+
+![Keep Notes](https://img.shields.io/badge/Next.js-16-black)
+![TypeScript](https://img.shields.io/badge/TypeScript-5.0-blue)
+![Tailwind CSS](https://img.shields.io/badge/Tailwind-4.0-38bdf8)
+![Prisma](https://img.shields.io/badge/Prisma-7.0-2d3748)
+
+## ✨ Features
+
+- 📝 **Create & Edit Notes**: Quick note creation with expandable input
+- ☑️ **Checklist Support**: Create todo lists with checkable items
+- 🎨 **Color Customization**: 10 beautiful color themes for organizing notes
+- 📌 **Pin Notes**: Keep important notes at the top
+- 📦 **Archive**: Archive notes you want to keep but don't need to see
+- 🏷️ **Labels**: Organize notes with custom labels
+- 🔍 **Real-time Search**: Instantly search through all your notes
+- 🌓 **Dark Mode**: Beautiful dark theme with system preference detection
+- 📱 **Fully Responsive**: Works perfectly on desktop, tablet, and mobile
+- ⚡ **Server Actions**: Lightning-fast CRUD operations with Next.js 16
+- 🎯 **Type-Safe**: Full TypeScript support throughout
+
+## 🚀 Tech Stack
+
+### Frontend
+- **Next.js 16** - React framework with App Router
+- **TypeScript** - Type safety and better DX
+- **Tailwind CSS 4** - Utility-first CSS framework
+- **shadcn/ui** - Beautiful, accessible UI components
+- **Lucide React** - Modern icon library
+
+### Backend
+- **Next.js Server Actions** - Server-side mutations
+- **Prisma ORM** - Type-safe database client
+- **SQLite** - Lightweight database (easily switchable to PostgreSQL)
+
+## 📦 Installation
+
+### Prerequisites
+- Node.js 18+ 
+- npm or yarn
+
+### Steps
+
+1. **Clone the repository**
+   ```bash
+   git clone <repository-url>
+   cd keep-notes
+   ```
+
+2. **Install dependencies**
+   ```bash
+   npm install
+   ```
+
+3. **Set up the database**
+   ```bash
+   npx prisma generate
+   npx prisma migrate dev
+   ```
+
+4. **Start the development server**
+   ```bash
+   npm run dev
+   ```
+
+5. **Open your browser**
+   Navigate to [http://localhost:3000](http://localhost:3000)
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.