fix: user as student in one org forced to lms, hidden bottom in docs

apps/docs/app/app.css

@@ -3,3 +3,14 @@
 @import 'fumadocs-ui/css/preset.css';
 
 @source "../../../packages/ui/src/**/*.{ts,tsx}";
+
+/*
+ * The docs layout is nested inside HomeLayout, whose navbar is `sticky h-14 top-0`
+ * (3.5rem) but does not expose its height to the docs layout. Fumadocs hardcodes
+ * `--fd-docs-height: 100dvh`, so the sidebar and TOC end up 3.5rem taller than the
+ * visible area and their bottom (footer / last nav items) is clipped below the fold.
+ * Subtract the navbar height so both columns can scroll to the end.
+ */
+#nd-docs-layout {
+  --fd-docs-height: calc(100dvh - 3.5rem);
+}