Set up expo-dev-client with comprehensive configuration

[Smartdevs17]

Description

Development builds lack native module support. Set up expo-dev-client with proper configuration for native debugging and testing.

Acceptance Criteria

• expo-dev-client installation and configuration
• EAS Build profiles for dev, preview, production
• Native module debugging setup
• Device and simulator launch configuration
• Environment-specific app config
• Documentation for dev build workflow

Technical Scope

• app.json
• eas.json
• package.json
• Edge: EAS Build cache invalidation, native dependency conflicts, build time optimization