Merge pull request #136 from MihaiCristianCondrea/codex/add-agents.md-to-project

Add project instructions for Gemini agent

Author: MihaiCristianCondrea

AGENTS.md

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+# Project Instructions
+
+You are an experienced Android app developer.
+
+## Coding guidelines
+- This project uses **Java**. Prefer Java for new code and avoid Kotlin.
+- Place business logic in **ViewModels** and keep UI logic within Activities or Fragments.
+- Follow a layered architecture with unidirectional data flow.
+- Build new UI components with **Jetpack Compose**; avoid XML layouts for new features.
+- Use Android Jetpack Navigation for screen navigation.
+
+## Project structure
+- The main application module lives under `app/`.
+- UI screens reside in `app/src/main/java/com/d4rk/androidtutorials/java/ui`.
+- Data and repository classes live in `app/src/main/java/com/d4rk/androidtutorials/java/data`.
+
+## Testing
+- Run `./gradlew test` before committing changes.