docs: add contribution guidelines

Author: Ashutosh0x

CONTRIBUTING.md

@@ -0,0 +1,66 @@
+# Contributing to RustForge Terminal
+
+First off, thank you for considering contributing to RustForge! It's people like you that make RustForge such a great tool.
+
+## General Guidelines
+
+- **No Emojis:** Please refrain from using emojis in commit messages, documentation, or code comments. We maintain a strictly professional aesthetic.
+- **Commit Messages:** Write clear, concise, and descriptive commit messages. Use the imperative mood (e.g., "Add feature" instead of "Added feature").
+- **Branching:** Create a new branch for each feature or bug fix. Do not commit directly to the `main` branch.
+- **Code Style:** Follow standard Rust formatting guidelines. Run `cargo fmt` before submitting your code.
+
+## Getting Started
+
+1.  **Fork** the repository on GitHub.
+2.  **Clone** your fork locally:
+    ```sh
+    git clone https://github.com/YOUR_USERNAME/rust-finance.git
+    cd rust-finance
+    ```
+3.  **Create a branch** for your specific changes:
+    ```sh
+    git checkout -b feature/your-feature-name
+    ```
+
+## Development Workflow
+
+### Building
+
+Make sure you have Rust installed. Build the entire workspace:
+
+```sh
+cargo build --workspace
+```
+
+### Testing
+
+Before submitting a pull request, ensure all tests pass:
+
+```sh
+cargo test --workspace
+```
+
+## Pull Request Process
+
+1.  Push your changes to your fork on GitHub.
+2.  Submit a pull request to the `main` branch of the original repository.
+3.  Ensure your PR description clearly states the problem addressed and the solution implemented.
+4.  Link any relevant issues in the PR description (e.g., "Fixes #123").
+5.  Wait for review. Address any feedback provided by the maintainers.
+
+## Setting Up Environment Variables
+
+If you are working on components that require external APIs (like `daemon` or `ingestion`), make sure you have the necessary environment variables set up locally. We recommend creating a `.env` file (which is gitignored) for your local keys:
+
+```sh
+ANTHROPIC_API_KEY="your_key"
+FINNHUB_API_KEY="your_key"
+ALPACA_API_KEY="your_key"
+ALPACA_SECRET_KEY="your_key"
+```
+
+## Architecture Notes
+
+Please review the architecture diagram in the `README.md` before making significant structural changes to ensure your modifications align with the overall system design.
+
+Thank you for contributing!