ci: Add GitHub Actions workflow for multi-platform build and artifact upload.

Author: ProgrammerKR

.github/workflows/build.yml

@@ -18,6 +18,13 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - os: ubuntu-latest
+            bin_path: build/proxpl
+          - os: macos-latest
+            bin_path: build/proxpl
+          - os: windows-latest
+            bin_path: build/Release/proxpl.exe
 
     steps:
       - name: Checkout source
@@ -132,14 +139,11 @@ jobs:
              -DCMAKE_PREFIX_PATH="$env:LLVM_ROOT"
 
       - name: Build
-
         shell: bash
-        run: cmake --build build --verbose
+        run: cmake --build build --config Release --verbose
 
       - name: Upload Artifact
         uses: actions/upload-artifact@v4
         with:
           name: ProXPL-${{ matrix.os }}
-          path: |
-            build/proxpl
-            build/Release/proxpl.exe
+          path: ${{ matrix.bin_path }}