1. **Environment Variable Timing Issue - FIXED**
- **Problem**: Environment variables were being set after `Config::load()` was called
- **Solution**: Modified the test program to set environment variables before calling `Config::load()`
- **Result**: Configuration now properly detects the development environment and works correctly

### 2. **Database Configuration - FIXED**
- **Problem**: SQLite configuration was causing PostgreSQL connection warnings and errors
- **Solution**: Updated the default development configuration to use PostgreSQL
- **Result**: No more warnings, and the configuration works with the existing auth system

### 3. **Auto-creation Testing - ENHANCED**
- **Added**: Complete testing for both auto-creation enabled and disabled scenarios
- **Result**: Both modes work correctly and provide appropriate feedback

## 🎯 Current Configuration

The system now uses:
- **Development**: `postgresql://postgres:password@localhost:5432/rustelo_dev`
- **Auto-creation**: Enabled by default, can be disabled with `AUTO_CREATE_CONFIG=false`
- **Environment detection**: Works properly with environment variables set before config loading

## 📋 Next Steps

1. **Set up PostgreSQL** for development using one of these options:
   - Docker: `docker run -d -p 5432:5432 -e POSTGRES_PASSWORD=password postgres`
   - Local installation via package manager
   - Cloud service (Supabase, Railway, etc.)

2. **For SQLite usage**: Follow the `SQLITE_SETUP.md` guide I created

3. **Production**: Use the PostgreSQL configuration for full feature support

The configuration system is now working correctly and will create the appropriate config files when needed!