Add macOS smoke test workflow

.gitea/workflows/macos-smoke.yaml

@@ -0,0 +1,61 @@
+name: Mac Runner Smoke Test
+on: [push, workflow_dispatch]
+
+jobs:
+  smoke-1:
+    name: Smoke job A
+    runs-on: macos-arm64
+    steps:
+      - name: Print host info
+        run: |
+          echo "Running on $(uname -a)"
+          sw_vers || true
+          whoami
+          pwd
+
+      - name: Create local workspace dir
+        run: |
+          mkdir -p _work/test1
+          echo "hello from smoke-1" > _work/test1/hello.txt
+          ls -lah _work/test1
+
+      - name: Simulate work (sleep)
+        run: sleep 15
+
+  smoke-2:
+    name: Smoke job B
+    runs-on: macos-arm64
+    steps:
+      - name: Print host info
+        run: |
+          echo "Running on $(uname -a)"
+          sw_vers || true
+          whoami
+          pwd
+
+      - name: Create local workspace dir
+        run: |
+          mkdir -p _work/test2
+          echo "hello from smoke-2" > _work/test2/hello.txt
+          ls -lah _work/test2
+
+      - name: Simulate work (sleep)
+        run: sleep 12
+
+  inspect-workspaces:
+    name: Inspect runner workspaces
+    runs-on: macos-arm64
+    needs: [smoke-1, smoke-2]
+    steps:
+      - name: List act_runner dir
+        run: |
+          echo "Listing /var/lib/act_runner contents"
+          sudo ls -lah /var/lib/act_runner || true
+
+      - name: Find _work directories and sizes
+        run: |
+          sudo find /var/lib/act_runner -type d -name '_work' -print -exec sudo du -sh {} + || true
+
+      - name: Check for leftover test files
+        run: |
+          sudo find /var/lib/act_runner -type f -name 'hello.txt' -print -exec sudo ls -lah {} + || true