Devcontainer setup

.devcontainer/README.md

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+# Dev Container Setup 🐳
+
+## ⚠️ Quick Fix for the Error
+
+The dev container failed due to a Docker Compose syntax error. This has been **fixed**! 
+
+## <20> Try Again
+
+1. **Close VS Code completely**
+2. **Reopen the project**: `code .`
+3. **Reopen in Container**: `Cmd/Ctrl + Shift + P` → "Dev Containers: Reopen in Container"
+
+The container should now build successfully!
+
+## 📋 Alternative Setup Options
+
+If you still have issues, try these alternatives:
+
+### Option 1: Simple Dev Container
+```bash
+# Rename the alternative config
+cd .devcontainer
+mv devcontainer.json devcontainer-compose.json
+mv devcontainer-simple.json devcontainer.json
+
+# Then reopen in VS Code
+```
+
+### Option 2: Manual Docker Setup
+```bash
+# Build and run manually
+cd .devcontainer
+docker build -t youtube-classifier .
+docker run -it --rm -p 11434:11434 -p 6080:6080 -v $(pwd)/..:/workspace youtube-classifier
+```
+
+### Option 3: Local Installation
+Use the main project's `setup.sh` script instead.
+
+## 🔧 What Was Fixed
+
+- **Docker Compose syntax error**: Removed extra colon in volumes section
+- **Simplified configuration**: Reduced complexity to improve reliability
+- **Better error handling**: More robust startup script
+
+## 📖 Once Running
+
+After the container starts successfully:
+
+1. **Wait for setup** (~5-10 minutes first time)
+2. **Access GUI**: http://localhost:6080/vnc.html
+3. **Test setup**: `python test_ollama.py`
+4. **Run demo**: `python demo_classification.py`
+5. **Start classifying**: `python script.py`
+
+## <20> Still Having Issues?
+
+1. **Clean Docker**: `docker system prune -a`
+2. **Update VS Code**: Make sure you have the latest Dev Containers extension
+3. **Check Docker**: Ensure Docker Desktop is running
+4. **Try simple version**: Use `devcontainer-simple.json` instead
+
+---
+
+**The main issue has been fixed - try reopening in container now! <20>**