added base examples and drills

kata/moderation/original/moderationService.js

@@ -0,0 +1,30 @@
+const fs = require("fs");
+
+function reviewPost(filePath, postId) {
+  const raw = fs.readFileSync(filePath, "utf8");
+  const state = JSON.parse(raw);
+  const post = state.posts.find((item) => item.id === postId);
+
+  if (!post) {
+    throw new Error("Post not found");
+  }
+
+  let action = "approve";
+
+  if (post.text.includes("buy now") || post.text.includes("free money")) {
+    action = "reject";
+  }
+
+  if (post.reports > 3) {
+    action = "escalate";
+  }
+
+  post.status = action;
+  post.reviewedAt = new Date().toISOString();
+  fs.writeFileSync(filePath, JSON.stringify(state, null, 2));
+  console.log("Moderation action", postId, action);
+
+  return { action };
+}
+
+module.exports = { reviewPost };