refactor: replace Fumadocs-owned docs chrome with custom DocsSidebar / DocsToc components

- Add `src/components/docs/docs-sidebar.tsx` — a bespoke sidebar that reads the Fumadocs page tree and renders a `<NavList>` of links using TanStack Router's `<Link>`; shows a `<details>` disclosure on mobile and a sticky `<aside>` rail on `md`+, active item highlighted via the site's `--accent` token
- Add `src/components/docs/docs-toc.tsx` — a bespoke table of contents that wraps Fumadocs' `AnchorProvider`/`useActiveAnchor` in a plain `<ul>` with depth-based padding; hidden below `xl`
- Replace `<DocsLayout>` / `<DocsPage>` / `<DocsTitle>` / `<DocsDescription>` in `docs.$.tsx` with the custom components and plain `<article>` markup so the docs page is fully owned by the site shell rather than Fumadocs' layout primitives; `baseOptions()` and `layout.shared.tsx` are deleted
- Simplify the Fumadocs CSS token override in `styles.css` — the `#nd-sidebar` specificity hack is no longer needed now that Fumadocs renders no sidebar of its own
- Move `bin` from the top-level field into `publishConfig` in both `apps/cli/package.json` and `packages/create-stanza/package.json` so the binary entries only apply to the published artifact, not local workspace resolution
- Add a `tslib` → `tslib/tslib.es6.mjs` alias in `vite.config.ts` to avoid Rolldown's CJS interop issue with tslib's UMD bundle in Vite 8
- Set `[--trees-border-radius-override:0px]` on the file-tree in `FilePreview` so selected rows render as flush rectangles rather than rounded pills

apps/cli/package.json

@@ -19,9 +19,6 @@
     "url": "git+https://github.com/jakejarvis/stanza.git",
     "directory": "apps/cli"
   },
-  "bin": {
-    "stanza": "./dist/bin.mjs"
-  },
   "files": [
     "dist"
   ],
@@ -32,6 +29,9 @@
     ".": "./src/index.ts"
   },
   "publishConfig": {
+    "bin": {
+      "stanza": "./dist/bin.mjs"
+    },
     "main": "./dist/index.mjs",
     "types": "./dist/index.d.mts",
     "exports": {

apps/web/src/components/builder/file-preview.tsx

@@ -114,7 +114,7 @@ export function FilePreview({
               <FileTree
                 key={resolvedTheme}
                 model={model}
-                className="h-full overflow-auto py-2 [--trees-accent-override:var(--ring)] [--trees-bg-override:transparent] [--trees-padding-inline-override:8px] [--trees-selected-bg-override:var(--accent)] [--trees-selected-fg-override:var(--accent-foreground)]"
+                className="h-full overflow-auto py-2 [--trees-accent-override:var(--ring)] [--trees-bg-override:transparent] [--trees-border-radius-override:0px] [--trees-padding-inline-override:8px] [--trees-selected-bg-override:var(--accent)] [--trees-selected-fg-override:var(--accent-foreground)]"
                 style={treeStyle}
               />
             </ResizablePanel>

apps/web/src/components/docs/docs-sidebar.tsx

@@ -0,0 +1,93 @@
+import { Link, useRouterState } from "@tanstack/react-router";
+import type { Node, Root } from "fumadocs-core/page-tree";
+import type { ReactNode } from "react";
+
+import { cn } from "@/lib/utils";
+
+function toSplat(url: string): string {
+  return url.replace(/^\/docs\/?/, "");
+}
+
+function normalize(path: string): string {
+  return path.length > 1 ? path.replace(/\/$/, "") : path;
+}
+
+function NavLink({ url, name, pathname }: { url: string; name: ReactNode; pathname: string }) {
+  const active = normalize(pathname) === normalize(url);
+  return (
+    <li>
+      <Link
+        to="/docs/$"
+        params={{ _splat: toSplat(url) }}
+        className={cn(
+          "block px-2 py-1.5 text-muted-foreground transition-colors hover:text-foreground",
+          active && "bg-accent font-medium text-accent-foreground",
+        )}
+      >
+        {name}
+      </Link>
+    </li>
+  );
+}
+
+function NavNode({ node, pathname }: { node: Node; pathname: string }) {
+  if (node.type === "separator") {
+    return (
+      <li className="px-2 pt-4 pb-1 text-xs font-medium tracking-wide text-muted-foreground/70">
+        {node.name}
+      </li>
+    );
+  }
+
+  if (node.type === "folder") {
+    return (
+      <li className="pt-2">
+        <p className="px-2 py-1 text-xs font-medium tracking-wide text-muted-foreground/70">
+          {node.name}
+        </p>
+        <ul className="space-y-0.5">
+          {node.index && (
+            <NavLink url={node.index.url} name={node.index.name} pathname={pathname} />
+          )}
+          {node.children.map((child, i) => (
+            <NavNode key={child.$id ?? i} node={child} pathname={pathname} />
+          ))}
+        </ul>
+      </li>
+    );
+  }
+
+  return <NavLink url={node.url} name={node.name} pathname={pathname} />;
+}
+
+function NavList({ nodes, pathname }: { nodes: Node[]; pathname: string }) {
+  return (
+    <ul className="space-y-0.5 text-sm">
+      {nodes.map((node, i) => (
+        <NavNode key={node.$id ?? i} node={node} pathname={pathname} />
+      ))}
+    </ul>
+  );
+}
+
+export function DocsSidebar({ tree }: { tree: Root }) {
+  const pathname = useRouterState({ select: (s) => s.location.pathname });
+  const list = <NavList nodes={tree.children} pathname={pathname} />;
+
+  return (
+    <>
+      {/* Mobile: a disclosure above the content so docs stay navigable < md. */}
+      <details className="mb-6 border-b border-border pb-4 md:hidden">
+        <summary className="cursor-pointer px-2 py-1 text-sm font-medium">Documentation</summary>
+        <div className="mt-3">{list}</div>
+      </details>
+
+      {/* Desktop: sticky left rail aligned to the page frame. */}
+      <aside className="hidden w-56 shrink-0 md:block">
+        <div className="sticky top-14 max-h-[calc(100svh-3.5rem)] overflow-y-auto py-8 pr-4">
+          {list}
+        </div>
+      </aside>
+    </>
+  );
+}

apps/web/src/components/docs/docs-toc.tsx

@@ -0,0 +1,48 @@
+import { AnchorProvider, useActiveAnchor } from "fumadocs-core/toc";
+import type { TOCItemType } from "fumadocs-core/toc";
+
+import { cn } from "@/lib/utils";
+
+function TocList({ toc }: { toc: TOCItemType[] }) {
+  const active = useActiveAnchor();
+
+  return (
+    <ul className="space-y-0.5 text-sm">
+      {toc.map((item) => {
+        const id = item.url.split("#")[1];
+        const isActive = id === active;
+        return (
+          <li key={item.url}>
+            <a
+              href={item.url}
+              style={{ paddingLeft: `${0.5 + Math.max(0, item.depth - 2) * 0.75}rem` }}
+              className={cn(
+                "block py-1 text-muted-foreground transition-colors hover:text-foreground",
+                isActive && "font-medium text-foreground",
+              )}
+            >
+              {item.title}
+            </a>
+          </li>
+        );
+      })}
+    </ul>
+  );
+}
+
+export function DocsToc({ toc }: { toc: TOCItemType[] }) {
+  if (toc.length === 0) return null;
+
+  return (
+    <aside className="hidden w-56 shrink-0 xl:block">
+      <div className="sticky top-14 max-h-[calc(100svh-3.5rem)] overflow-y-auto py-8">
+        <p className="mb-2 px-2 text-xs font-medium tracking-wide text-muted-foreground/70">
+          On this page
+        </p>
+        <AnchorProvider toc={toc}>
+          <TocList toc={toc} />
+        </AnchorProvider>
+      </div>
+    </aside>
+  );
+}

apps/web/src/lib/layout.shared.tsx

@@ -1,13 +0,0 @@
-import type { BaseLayoutProps } from "fumadocs-ui/layouts/shared";
-
-// The stanza site header/footer wrap docs from __root, so Fumadocs renders no
-// top nav of its own — only its sidebar + table of contents. Dark mode and
-// search are owned by the site shell (ThemeProvider + registry palette), so
-// Fumadocs' own theme switch and search trigger stay off.
-export function baseOptions(): BaseLayoutProps {
-  return {
-    nav: { enabled: false },
-    themeSwitch: { enabled: false },
-    searchToggle: { enabled: false },
-  };
-}

apps/web/src/routes/docs.$.tsx

@@ -2,13 +2,13 @@ import { createFileRoute, notFound } from "@tanstack/react-router";
 import { createServerFn } from "@tanstack/react-start";
 import browserCollections from "collections/browser";
 import { useFumadocsLoader } from "fumadocs-core/source/client";
-import { DocsLayout } from "fumadocs-ui/layouts/docs";
-import { DocsBody, DocsDescription, DocsPage, DocsTitle } from "fumadocs-ui/layouts/docs/page";
+import { DocsBody } from "fumadocs-ui/layouts/docs/page";
 import { RootProvider } from "fumadocs-ui/provider/tanstack";
 import { Suspense } from "react";
 
+import { DocsSidebar } from "@/components/docs/docs-sidebar";
+import { DocsToc } from "@/components/docs/docs-toc";
 import { useMDXComponents } from "@/components/mdx";
-import { baseOptions } from "@/lib/layout.shared";
 import { buildHead } from "@/lib/seo";
 import { source } from "@/lib/source";
 
@@ -31,13 +31,18 @@ const clientLoader = browserCollections.docs.createClientLoader({
   id: "docs",
   component({ toc, frontmatter, default: MDX }) {
     return (
-      <DocsPage toc={toc}>
-        <DocsTitle>{frontmatter.title}</DocsTitle>
-        <DocsDescription>{frontmatter.description}</DocsDescription>
-        <DocsBody>
-          <MDX components={useMDXComponents()} />
-        </DocsBody>
-      </DocsPage>
+      <div className="xl:flex xl:gap-8">
+        <article className="min-w-0 flex-1 py-8">
+          <h1 className="text-2xl font-semibold tracking-tight">{frontmatter.title}</h1>
+          {frontmatter.description && (
+            <p className="mt-2 text-sm text-muted-foreground">{frontmatter.description}</p>
+          )}
+          <DocsBody className="mt-8">
+            <MDX components={useMDXComponents()} />
+          </DocsBody>
+        </article>
+        <DocsToc toc={toc} />
+      </div>
     );
   },
 });
@@ -65,9 +70,14 @@ function Page() {
 
   return (
     <RootProvider theme={{ enabled: false }} search={{ enabled: false }}>
-      <DocsLayout {...baseOptions()} tree={data.pageTree}>
-        <Suspense>{clientLoader.useContent(data.path)}</Suspense>
-      </DocsLayout>
+      <div className="mx-auto max-w-6xl px-4 sm:px-6">
+        <div className="md:flex md:gap-8">
+          <DocsSidebar tree={data.pageTree} />
+          <div className="min-w-0 flex-1">
+            <Suspense>{clientLoader.useContent(data.path)}</Suspense>
+          </div>
+        </div>
+      </div>
     </RootProvider>
   );
 }

apps/web/src/styles.css

@@ -8,12 +8,10 @@
 @source "../node_modules/fumadocs-ui/dist/**/*.js";
 
 /* Remap Fumadocs' own design tokens onto the stanza (shadcn) palette so the
- * docs chrome inherits the site's exact colors. The `#nd-sidebar` selector is
- * included to override fumadocs' neutral.css sidebar tweaks at equal
- * specificity; values follow stanza's `:root`/`.dark` tokens automatically. */
+ * docs content (prose, code blocks, callouts) inherits the site's exact colors.
+ * Values follow stanza's `:root`/`.dark` tokens automatically. */
 :root,
-.dark,
-.dark #nd-sidebar {
+.dark {
   --color-fd-background: var(--background);
   --color-fd-foreground: var(--foreground);
   --color-fd-muted: var(--muted);

apps/web/vite.config.ts

@@ -17,5 +17,11 @@ export default defineConfig({
   ],
   resolve: {
     tsconfigPaths: true,
+    alias: {
+      // tslib's CJS UMD sets __esModule: true without providing a default
+      // export, which breaks Vite 8 / Rolldown's consistent CJS interop.
+      // Alias to the native ESM build to avoid the interop entirely.
+      tslib: "tslib/tslib.es6.mjs",
+    },
   },
 });

packages/create-stanza/package.json

@@ -18,14 +18,14 @@
     "url": "git+https://github.com/jakejarvis/stanza.git",
     "directory": "packages/create-stanza"
   },
-  "bin": {
-    "create-stanza": "./dist/bin.mjs"
-  },
   "files": [
     "dist"
   ],
   "type": "module",
   "publishConfig": {
+    "bin": {
+      "create-stanza": "./dist/bin.mjs"
+    },
     "access": "public"
   },
   "scripts": {