💻 Implement Theia IDE Framework

[github-actions]

Phase 4 Implementation: Theia IDE

### 🎯 Objective
Integrate Theia platform for building custom development environments with AI integration capabilities.

### 🚀 Actionable Implementation Steps
- [ ] **Step 1**: Deploy Theia platform framework
- [ ] **Step 2**: Configure frontend-backend separation
- [ ] **Step 3**: Implement dependency injection framework
- [ ] **Step 4**: Create extension system architecture
- [ ] **Step 5**: Enable AI integration capabilities
- [ ] **Step 6**: Configure multi-platform support
- [ ] **Step 7**: Implement custom development tools

### 🧪 Test Requirements & Verification
- [ ] Platform functionality tests
- [ ] Extension system validation
- [ ] AI integration tests
- [ ] Multi-platform compatibility
- [ ] Performance benchmarks

### 🌟 IDE Features
- [ ] Custom development environment
- [ ] AI integration capabilities
- [ ] Extension system architecture
- [ ] Multi-platform support

### ✅ Success Criteria & Metrics
- ✅ Theia platform operational
- ✅ Extension system working
- ✅ AI integration active
- ✅ Multi-platform support
- ✅ Custom tools functional

### 🏷️ Labels
- phase-4
- theia
- ide
- development
- actionable