Adds testcase for PR policy checks

Dockerfile.ci

@@ -0,0 +1,16 @@
+FROM ubuntu:24.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      python3 \
+      clang-format \
+      cmake \
+      ninja-build \
+      git \
+      build-essential \
+      ca-certificates && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /workspace