[chore]: Migrate Architecture to Dependency Injection (Hilt)

[Thunder-Blaze]

Problem Description

The app relies on manual dependency injection. As the app scales, this manual wiring creates boilerplate and makes testing difficult.

Expected Solution

Refactor the codebase to use Dagger-Hilt for automated dependency injection.

Steps to Reproduce

1. Check StocksActivity.kt and StockViewModelProviderFactory.kt to see manual repository passing.

Proposed Fix

Add Hilt Gradle plugins. Annotate the application with @HiltAndroidApp. Create a di/AppModule.kt to provide singletons of Room and Retrofit. Update ViewModels with @HiltViewModel and inject them into Fragments using by viewModels().

Concerned Files

• build.gradle.kts
• StocksApplication.kt
• AppModule.kt (new)
• All ViewModels and Fragments

---

Acceptance Criteria

• StockViewModelProviderFactory is completely deleted from the project.
• ViewModels are injected natively.
• The app compiles and runs perfectly using Hilt injection.

[krrish2025]

/assign

[mini-walkerx]

✅ Successfully assigned to @krrish2025.

You have 8 hours to complete this issue (Deadline: Sun, 12 Apr 2026 19:34:26 GMT).

[krrish2025]

/unassign

[mini-walkerx]

✅ Successfully unassigned @krrish2025. Waitlist queue triggers to be processed here.