feat: Doppler Integration for React Native Boilerplate

[abhishek310001]

Description:

Integrate Doppler for secure and centralized environment variable management in preview and production environments. Update the CI/CD pipeline to fetch variables from Doppler during builds and deployments.

Requirements:

1. Doppler Project Setup:

   • Configure a Doppler project with preview and production environments.

2. Pipeline Integration:

   • Update CI/CD pipeline to fetch variables using Doppler CLI.

3. Doppler CLI Installation:

   • Include steps to install and authenticate the Doppler CLI in the pipeline.

4. Environment Management:

   • Replace existing .env setup with Doppler.
   • Test variable access in the app runtime.

5. Documentation:

   • Update README to guide developers on using Doppler for local development and CI/CD.

6. Testing:

   • Verify variable injection for both environments.
   • Test fallback behavior for missing variables.

Acceptance Criteria:

• Doppler integration in CI/CD for preview and production.
• Secure management and accessibility of environment variables.
• Updated documentation and successful tests.