Refactor docs structure and update API env config

Moved documentation files into a new docs/ directory and added a documentation index (docs/README.md). Updated the main README with improved project and documentation details. Set explicit API environment variables in Dockerfile for production. Enhanced next.config.mjs with improved API_BASE_URL handling and logging for better deployment clarity.

README.md

@@ -1,4 +1,15 @@
-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+# 🔥 Ember Market Frontend
+
+A modern Next.js frontend for the Ember Market platform, built with TypeScript, Tailwind CSS, and Shadcn UI components.
+
+## 📚 Documentation
+
+For detailed documentation, guides, and troubleshooting, see the **[docs/](./docs/)** folder:
+
+- **[📋 Documentation Index](./docs/README.md)** - Complete documentation overview
+- **[🚀 CapRover Deployment](./docs/CAPROVER-DEPLOYMENT-FIX.md)** - Deployment fixes and environment setup
+- **[📊 Analytics](./docs/ANALYTICS.md)** - Analytics implementation and insights
+- **[⚡ Build Optimization](./docs/OPTIMIZED-BUILD.md)** - Performance and build optimizations
 
 ## Getting Started