[ci] add ai policy checkbox detection

.github/scripts/ai_policy.cjs

@@ -0,0 +1,39 @@
+// Closes issues and prs whose authors/agents don't accept the ai policy
+// https://github.com/searxng/searxng/blob/master/AI_POLICY.rst
+
+module.exports = async ({ github, context }) => {
+  const item = context.payload.pull_request || context.payload.issue;
+  const body = item.body || '';
+  const kind = context.payload.pull_request ? 'pull request' : 'issue';
+
+  // https://github.com/searxng/searxng/pull/6476#discussion_r3683782481
+  const hasBox = /\[[Xx]\].*AI Policy/.test(body);
+  const hasRef = /\[AI Policy\]:\s*https:\/\/github\.com\/searxng\/searxng\/.*AI_POLICY/.test(body);
+  if (hasBox && hasRef) {
+    return;
+  }
+
+  const { owner, repo } = context.repo;
+  await github.rest.issues.createComment({
+    owner,
+    repo,
+    issue_number: item.number,
+    body:
+      'Hello! Thank you for your contribution.\n\n' +
+      `Unfortunately your ${kind} was closed as the AI Policy has not been accepted.\n\n` +
+      `Please open a new ${kind} after confirming your contribution aligns with our AI Policy.`,
+  });
+  await github.rest.issues.addLabels({
+    owner,
+    repo,
+    issue_number: item.number,
+    labels: ['invalid:slop'],
+  });
+  await github.rest.issues.update({
+    owner,
+    repo,
+    issue_number: item.number,
+    state: 'closed',
+    state_reason: 'not_planned',
+  });
+};