create ci

.github/workflows/build.yml

@@ -0,0 +1,42 @@
+name: build
+on: [pull_request, push]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        java: [
+          21  # Minimum supported by Minecraft
+        ]
+        os: [ubuntu-20.04, windows-latest]
+        mod_loader: [fabric, forge, neoforge]  # Add loaders to matrix
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Validate gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Setup JDK ${{ matrix.java }}
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java }}
+
+      - name: Make gradle wrapper executable (Linux only)
+        if: ${{ runner.os != 'Windows' }}
+        run: chmod +x ./gradlew
+
+      - name: Build Common Module
+        run: ./gradlew :common:build
+
+      # Build for specific mod loader based on matrix
+      - name: Build ${{ matrix.mod_loader }} Loader
+        run: ./gradlew :${{ matrix.mod_loader }}:build
+
+      - name: Capture Build Artifacts
+        if: ${{ runner.os == 'Linux' && matrix.java == '21' }}  # Only on Linux and latest Java
+        uses: actions/upload-artifact@v4
+        with:
+          name: artifacts-${{ matrix.mod_loader }}
+          path: ${{ matrix.mod_loader }}/build/libs/