ci(runner): add runner test ci (#296)

This commit adds a new GitHub action that runs the worker tests on main branch commits and pull requests.

.github/workflows/ai-worker-test.yaml

@@ -0,0 +1,32 @@
+name: Run AI Worker Tests
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "worker/**"
+  pull_request:
+    paths:
+      - "worker/**"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.20"
+
+      - name: Install dependencies
+        working-directory: worker
+        run: go mod tidy
+
+      - name: Run tests
+        working-directory: worker
+        run: go test ./...