Refactor configuration management to use environment-specific configs

[Smartdevs17]

Context

Configuration needs environment-specific overrides with validation.

Current Limitation

Configuration is flat with no environment differentiation.

Expected Outcome

• Environment-specific config files
• Config validation with Zod schemas
• Secret management integration
• Config drift detection

Acceptance Criteria

• Config files per environment (dev/staging/prod)
• Zod schema validation for all config
• Secret management (AWS Secrets Manager)
• Config drift detection in CI
• Config documentation generation
• Runtime config refresh capability
• Config comparison between environments

Technical Scope

• backend/src/config.ts - Configuration module
• backend/src/config/ - Config files per environment
• infra/main.tf - Secret management
• .github/workflows/ - Config validation CI

[CeceOs92]

@CeceOs92 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

kindly assign me this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @CeceOs92 to this issue.

[adelekevictor12]

@adelekevictor12 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello maintainer, I can fix this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @adelekevictor12 to this issue.

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Congratulations, @CeceOs92! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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[drips-wave]

This issue has been completed by @CeceOs92 as part of the Stellar Wave Program's 7th Wave 🥳

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