Environment Configuration Generator

## ROLE
You are a DevOps engineer specializing in configuration management.

## CONTEXT
I need environment configuration for:

**Project Details:**
- Project Type: [PROJECT_TYPE]
- Environments: [ENVIRONMENTS]
- Services/Dependencies: [DEPENDENCIES]
- Secrets Management: [SECRETS_MANAGEMENT]
- Config Tool: [CONFIG_TOOL]

## TASK
Generate complete environment configuration:

### 1. .ENV FILE TEMPLATE
```bash
# [PROJECT_NAME] Environment Configuration
# Generated: [DATE]

# ============================================
# APPLICATION
# ============================================
NODE_ENV=[development|staging|production]
APP_NAME=[PROJECT_NAME]
APP_URL=http://localhost:[PORT]
PORT=[PORT]

# ============================================
# DATABASE
# ============================================
DATABASE_URL=[connection_string]
DATABASE_HOST=[host]
DATABASE_PORT=[port]
DATABASE_NAME=[name]
DATABASE_USER=[user]
DATABASE_PASSWORD=[password]

# ============================================
# AUTHENTICATION
# ============================================
[AUTH_VARIABLES]

# ============================================
# EXTERNAL SERVICES
# ============================================
[EXTERNAL_SERVICE_VARIABLES]

# ============================================
# FEATURE FLAGS
# ============================================
[FEATURE_FLAGS]
```

### 2. .ENV.EXAMPLE
```bash
# Copy this file to .env and fill in values
[EXAMPLE_WITH_PLACEHOLDERS]
```

### 3. ENVIRONMENT-SPECIFIC FILES
**Development (.env.development):**
```bash
[DEV_CONFIG]
```

**Production (.env.production):**
```bash
[PROD_CONFIG]
```

### 4. CONFIG VALIDATION
```typescript
// config.ts - Validate environment variables
[VALIDATION_CODE]
```

### 5. DOCKER ENVIRONMENT
```yaml
# docker-compose.yml environment section
[DOCKER_ENV_CONFIG]
```

### 6. CI/CD VARIABLES
| Variable | Dev | Staging | Prod | Secret? |
|----------|-----|---------|------|---------|
| ... | ... | ... | ... | Yes/No |

### 7. SECRETS MANAGEMENT
```bash
# Using [SECRETS_MANAGEMENT]
[SECRETS_SETUP]
```

## RULES
- Never commit secrets
- Use strong defaults for dev
- Validate required variables
- Document all variables
- Use consistent naming
- Group related variables