add pr template

.github/workflows/pr.yml

@@ -0,0 +1,30 @@
+name: PR Test Builds
+
+on:
+  pull_request:
+    branches: [ main ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Setup JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 17
+          cache: 'gradle'
+
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+
+      - name: Build with Gradle
+        run: ./gradlew assembleDebug
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v4
+        with:
+          path: app/build/outputs/apk/debug/app-debug.apk