chore(ci): Add GitHub Actions CI pipeline for Gradle build

Author: gymynnym

.github/workflows/ci.yml

@@ -0,0 +1,38 @@
+name: CI Pipeline
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    env:
+      SPRING_PROFILES_ACTIVE: test
+      CI: true
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v2
+
+      - name: Set up GraalVM 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: graalvm
+          java-version: "21"
+          cache: gradle
+
+      - name: Setup Gradle (caching & config)
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
+
+      - name: Build (includes tests and Boot JAR)
+        run: ./gradlew --no-daemon clean build