ci: add cross-platform validation for Linux, macOs, and Windows

Author: slyt3

.github/workflows/cross-platform-check.yml

@@ -0,0 +1,38 @@
+name: Cross-Platform Validation
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test-and-build:
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22'
+          cache-dependency-path: src/server/api/go/go.sum
+
+      - name: Install Dependencies
+        working-directory: src/server/api/go
+        run: go mod download
+
+      - name: Build Binary
+        working-directory: src/server/api/go
+        run: go build -v -o acontext ./cmd/server/main.go
+
+      - name: Run Tests (with Race Detector)
+        working-directory: src/server/api/go
+        run: go test -v -race ./...