clean up client install/configure and add sidebar cta

scripts/add-toc-cta-snippet.js

@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+/**
+ * One-off script: add PangolinCloudTocCta import and usage to every MDX file.
+ * Run from repo root: node scripts/add-toc-cta-snippet.js
+ */
+
+const fs = require("fs");
+const path = require("path");
+
+const BLOCK = `import PangolinCloudTocCta from "/snippets/pangolin-cloud-toc-cta.mdx";
+
+<PangolinCloudTocCta />
+
+`;
+
+function findMdxFiles(dir, list = []) {
+  const entries = fs.readdirSync(dir, { withFileTypes: true });
+  for (const e of entries) {
+    const full = path.join(dir, e.name);
+    if (e.isDirectory()) findMdxFiles(full, list);
+    else if (e.name.endsWith(".mdx")) list.push(full);
+  }
+  return list;
+}
+
+function addSnippet(filePath) {
+  let content = fs.readFileSync(filePath, "utf8");
+  if (content.includes("pangolin-cloud-toc-cta.mdx")) return false; // already added
+  const close = content.indexOf("\n---", 3);
+  if (close === -1) return false;
+  const insertAt = close + 4; // after "\n---"
+  content = content.slice(0, insertAt) + BLOCK + content.slice(insertAt);
+  fs.writeFileSync(filePath, content);
+  return true;
+}
+
+const root = path.resolve(__dirname, "..");
+const files = findMdxFiles(root).filter(
+  (f) => !f.includes("snippets" + path.sep)
+);
+let added = 0;
+for (const f of files) {
+  if (addSnippet(f)) added++;
+}
+console.log(`Added snippet to ${added} of ${files.length} MDX files.`);