docs: migrate documentation to Fumadocs

apps/docs/scripts/validate-docs-coverage.ts

@@ -0,0 +1,34 @@
+import fs from "node:fs";
+import path from "node:path";
+
+import { widgetDocSlugs } from "@homarr/definitions/docs/widget-doc-slugs";
+import { getIntegrationDocumentationSlug, integrationKinds } from "@homarr/definitions/integration";
+
+const docsDir = path.resolve(import.meta.dirname, "../docs");
+const documentationEntries = [
+  {
+    label: "Integration",
+    folder: "integrations",
+    entries: integrationKinds.map((kind) => [kind, getIntegrationDocumentationSlug(kind)] as const),
+  },
+  { label: "Widget", folder: "widgets", entries: Object.entries(widgetDocSlugs) },
+] as const;
+
+const missing: string[] = [];
+
+for (const { label, folder, entries } of documentationEntries) {
+  for (const [kind, slug] of entries) {
+    if (!slug) continue;
+    if (!fs.existsSync(path.join(docsDir, folder, slug, "index.mdx"))) {
+      missing.push(`${label} "${kind}" -> docs/${folder}/${slug}/index.mdx`);
+    }
+  }
+}
+
+if (missing.length > 0) {
+  throw new Error(
+    `Missing documentation for ${missing.length} feature(s):\n${missing.map((item) => `  - ${item}`).join("\n")}`,
+  );
+}
+
+console.log("Integration and widget documentation coverage passed");