Set up GitHub Actions CI workflow for automated testing and Docker builds

Co-authored-by: dmccoystephenson <21204351+dmccoystephenson@users.noreply.github.com>

Author: Copilot

.github/workflows/ci.yml

@@ -0,0 +1,77 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+    
+    - name: Cache Gradle packages
+      uses: actions/cache@v4
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+    
+    - name: Make gradlew executable
+      run: chmod +x ./gradlew
+    
+    - name: Run tests
+      run: ./gradlew test
+    
+    - name: Build application
+      run: ./gradlew build
+
+  docker:
+    runs-on: ubuntu-latest
+    needs: test
+    if: github.ref == 'refs/heads/main'
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    
+    - name: Log in to GitHub Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    
+    - name: Extract metadata
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ghcr.io/${{ github.repository }}
+        tags: |
+          type=ref,event=branch
+          type=sha,prefix={{branch}}-
+          type=raw,value=latest,enable={{is_default_branch}}
+    
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max

Dockerfile

@@ -4,9 +4,6 @@ FROM eclipse-temurin:21-jdk AS build
 
 WORKDIR /app
 
-# Create .gradle directory with proper permissions
-RUN mkdir -p /home/app/.gradle && chmod -R 777 /home/app/.gradle
-
 # Copy the Gradle wrapper, build.gradle and settings.gradle
 COPY gradlew .
 COPY gradle gradle