docs(contributing): fix branch refs and build steps, add PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,27 @@
+## Description
+
+<!-- What does this PR do? Why is it needed? -->
+
+## Related Issues
+
+<!-- Link related issues, e.g. "Fixes #123" -->
+
+## Type of Change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Refactor (no functional change)
+- [ ] Documentation
+- [ ] Other (describe below)
+
+## Checklist
+
+- [ ] Code follows project conventions
+- [ ] `flutter analyze` and `flutter test` pass
+- [ ] `go vet ./...` and `go test ./...` pass in `go_backend/` (if Go code changed)
+- [ ] Documentation updated (if needed)
+- [ ] Commit messages follow the [conventional commits](https://www.conventionalcommits.org) format
+
+## Screenshots
+
+<!-- For UI changes, add before/after screenshots. Delete this section otherwise. -->

CONTRIBUTING.md

@@ -83,7 +83,7 @@ Translation files are located in `lib/l10n/arb/`.
 
 2. **Add upstream remote**
    ```bash
-   git remote add upstream https://github.com/zarzet/SpotiFLAC-Mobile.git
+   git remote add upstream https://github.com/spotiflacapp/SpotiFLAC-Mobile.git
    ```
 
 3. **Use FVM (Flutter Version: 3.41.5)**
@@ -101,11 +101,15 @@ Translation files are located in `lib/l10n/arb/`.
    dart run build_runner build --delete-conflicting-outputs
    ```
 
-6. **Set up Go environment (Go Version: 1.25.7)**
+6. **Set up Go environment (Go Version: 1.25.8)**
+
+   Building the Go backend for Android requires the **Android NDK** (r29 is what CI uses). Make sure `ANDROID_NDK_HOME` points to it and `CGO_ENABLED=1`.
+
    ```bash
-   cd go_backend 
-   mkdir -p ../android/app/libs
+   go install golang.org/x/mobile/cmd/gomobile@latest
    gomobile init
+   cd go_backend
+   mkdir -p ../android/app/libs
    gomobile bind -target=android -androidapi 24 -o ../android/app/libs/gobackend.aar .
    cd ..
    ```
@@ -273,11 +277,13 @@ chore(deps): update flutter_riverpod to 3.1.0
 - [ ] Commit messages follow guidelines
 - [ ] PR description is clear and complete
 
+CI runs `flutter analyze`, `flutter test`, `go vet`, and `go test` on every pull request — make sure they pass locally before pushing.
+
 ## Questions?
 
 If you have questions, feel free to:
 
-- Open a [Discussion](https://github.com/zarzet/SpotiFLAC-Mobile/discussions)
-- Check existing [Issues](https://github.com/zarzet/SpotiFLAC-Mobile/issues)
+- Open a [Discussion](https://github.com/spotiflacapp/SpotiFLAC-Mobile/discussions)
+- Check existing [Issues](https://github.com/spotiflacapp/SpotiFLAC-Mobile/issues)
 
 Thank you for contributing! 💚