Add initial README, documentation, future plans, and tech stack files

README.md

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+# 💰 Personal Finance Tracker
+
+## 🌟 Overview
+This project is a comprehensive Personal Finance Tracker designed to help me manage my income and expenses effectively. Built with Java and Spring Boot, it offers a robust backend with a responsive frontend powered by Thymeleaf and Bootstrap.
+
+### Key Features
+- **Dashboard Overview**: Get a snapshot of your current financial health, including total balance, income, and expenses.
+- **Transaction Management**: Easily add, edit, and delete income and expense records with categorization.
+- **Visual Analytics**: Interactive charts powered by Chart.js to visualize spending habits and trends over time.
+- **Responsive Design**: A clean, mobile-friendly interface built with Bootstrap 5.
+
+---
+*Empowering you to take control of your financial future.*

documentation.md

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+# 📖 Documentation
+
+## Project Structure
+The project follows a standard Spring Boot application structure:
+- `src/main/java/com/example/FinanceTracker`: Root package.
+  - `Controllers`: Contains Spring MVC controllers for handling dashboard views, transaction forms, and API endpoints.
+  - `Services`: Houses business logic, such as processing transactions, calculating budget totals, and generating chart data.
+  - `Repositories`: Interfaces for database access and data persistence.
+  - `Entities`: JPA entities representing database tables (e.g., `Transaction`, `Category`).
+  - `DTO`: Data Transfer Objects used to shape data for the views and API responses.
+  - `Component`: Contains general-purpose components and utility classes.
+- `src/main/resources`:
+  - `static`: For static assets like CSS, JavaScript, and images.
+  - `templates`: Contains Thymeleaf HTML templates.
+  - `application.properties`: For application configuration.

future.md

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+# 🚀 Future Plans
+
+I am constantly looking to evolve my Personal Finance Tracker. Here is what is currently on my development roadmap:
+
+### Analytics
+- **Visualizations**: Advanced charts for spending habits using Chart.js.
+
+### Data Management
+- **Export**: Ability to export data to CSV and PDF formats.
+
+### Budgeting
+- **Category Limits**: Set monthly spending limits for specific categories.
+- **Alerts**: Email or UI notifications when approaching budget limits.
+
+### Security
+- **User Accounts**: Implementation of Spring Security for user registration and login.
+- **Encryption**: Secure storage of sensitive financial data.

stack.md

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+# 🛠️ Tech Stack
+
+### Backend
+- **Language**: Java 25
+- **Framework**: Spring Boot
+- **Persistence**: Spring Data JPA
+- **Database**: MySQL
+
+### Frontend & Interactivity
+- **Templating**: Thymeleaf
+- **Styling & Scripts**: Bootstrap 5, Chart.js, HTML5, and custom CSS for a responsive and clean design.
+
+## Other tools
+- **Version Control**: Git for source code management.
+
+## Build & DevOps
+* **Build Tool**: Maven