ci: add build.yml

.forgejo/workflow/build.yml

@@ -0,0 +1,21 @@
+name: Build workctl
+
+on: [push, pull_request]
+
+jobs:
+  build-and-run:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.24'
+
+    - name: Build Go application
+      run: |
+        go mod tidy
+        go build -o workctl .