feat: Add comprehensive environment setup documentation and guides

- Add SETUP_SUMMARY.md with full implementation overview
- Add docs/environment-setup.md for step-by-step setup instructions
- Add docs/quick-reference.md for quick command lookup
- Add docs/troubleshooting.md for common issues and solutions
- Update README.md with quick setup section and links
- Update docs/getting-started.md with setup references

Author: CreativeSystemsDevelopment

README.md

@@ -21,7 +21,32 @@ See the individual SDK READMEs for installation, usage examples, and API referen
 
 ## Getting Started
 
-For a complete walkthrough, see the **[Getting Started Guide](./docs/getting-started.md)**.
+### 🚀 Quick Setup
+
+**New to Copilot SDK?** Use our automated setup:
+
+```bash
+# Run automated environment setup
+bash scripts/setup-dev-env.sh
+
+# Or validate your existing setup
+bash scripts/validate-env.sh
+```
+
+**Start from a template:**
+
+```bash
+# Copy a quickstart template
+cp -r templates/typescript-quickstart my-app  # or python-quickstart
+cd my-app
+# Follow the template README
+```
+
+See **[Environment Setup Guide](./docs/environment-setup.md)** for detailed instructions.
+
+### 📖 Complete Walkthrough
+
+For a complete tutorial, see the **[Getting Started Guide](./docs/getting-started.md)**.
 
 Quick steps:
 
@@ -91,7 +116,9 @@ Please use the [GitHub Issues](https://github.com/github/copilot-sdk/issues) pag
 
 ## Quick Links
 
+- **[Environment Setup](./docs/environment-setup.md)** – Complete environment configuration guide
 - **[Getting Started](./docs/getting-started.md)** – Tutorial to get up and running
+- **[Project Templates](./templates/README.md)** – Ready-to-use starter templates
 - **[Cookbook](./cookbook/README.md)** – Practical recipes for common tasks across all languages
 - **[Samples](./samples/README.md)** – Video walkthroughs and sample projects