Refactor React Navigation structure to use type-safe navigation

[Smartdevs17]

Description

Navigation is loosely typed causing runtime errors. Refactor to fully type-safe navigation with parameter validation and deep linking.

Acceptance Criteria

• Typed navigation parameters for all routes
• Deep linking configuration with parameter validation
• Navigation middleware for auth and feature gates
• Type-safe navigation hooks
• Migration guide for existing routes
• No runtime navigation errors in test suite

Technical Scope

• src/navigation/AppNavigator.tsx
• src/navigation/types.ts
• src/navigation/navigationRef.ts
• Edge: dynamic route parameters, nested navigator typing, conditional navigation

[abimbolaalabi]

@abimbolaalabi has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey Champ, can i get assigned to this and get it done. Thank you!

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[drips-wave]

Congratulations, @abimbolaalabi! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

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