ci: 添加GitHub Actions工作流，自动构建并发布模组

Author: Dark2932

.github/workflows/build.yml

@@ -0,0 +1,72 @@
+name: Build and Release
+
+on:
+  push:
+    branches: [ "**" ]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Java 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: "21"
+          distribution: "temurin"
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build with Gradle
+        run: ./gradlew build
+
+      - name: Get commit count and date
+        id: vars
+        run: |
+          COMMIT_COUNT=$(git rev-list --count HEAD)
+          DATE=$(date +%Y%m%d)
+          echo "commit_count=$COMMIT_COUNT" >> $GITHUB_OUTPUT
+          echo "date=$DATE" >> $GITHUB_OUTPUT
+
+      - name: Rename JAR files
+        run: |
+          mkdir -p release
+          COMMIT_COUNT=${{ steps.vars.outputs.commit_count }}
+          DATE=${{ steps.vars.outputs.date }}
+          
+          FABRIC_JAR=$(find fabric/build/libs -name "*-fabric-*.jar" ! -name "*-dev-shadow*" ! -name "*-sources*" | head -1)
+          NEOFORGE_JAR=$(find neoforge/build/libs -name "*-neoforge-*.jar" ! -name "*-dev-shadow*" ! -name "*-sources*" | head -1)
+          
+          if [ -n "$FABRIC_JAR" ]; then
+            cp "$FABRIC_JAR" "release/dmodfix-dev${COMMIT_COUNT}-${DATE}-fabric.jar"
+          fi
+          
+          if [ -n "$NEOFORGE_JAR" ]; then
+            cp "$NEOFORGE_JAR" "release/dmodfix-dev${COMMIT_COUNT}-${DATE}-neoforge.jar"
+          fi
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dmodfix-dev${{ steps.vars.outputs.commit_count }}-${{ steps.vars.outputs.date }}
+          path: release/*.jar
+
+      - name: Create GitHub Release
+        if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master'
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: dev${{ steps.vars.outputs.commit_count }}
+          name: "Build ${{ steps.vars.outputs.commit_count }} (${{ steps.vars.outputs.date }})"
+          files: release/*.jar
+          generate_release_notes: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}