add gitea workflow

.gitea/workflows/build.yml

@@ -0,0 +1,30 @@
+name: Build
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-gitea
+
+    steps:
+
+    - name: Prep For Local Builds
+      run: echo "${LOCIP}      gitea.comnenos" >> /etc/hosts
+
+    - uses: actions/checkout@v4
+
+    - name: Install Build Tools
+      run: |
+        apt update
+        apt -y --no-install-recommends install build-essential gcc make
+
+    - name: Build
+      run: make
+
+    - name: Verify Binaries
+      run: |
+        echo "=== Built binaries ==="
+        ls -la build/
+        echo ""
+        echo "=== Version check (cnhelp) ==="
+        ./build/cnhelp