restructure project, add claudemd

web/ssr/serverData.ts

@@ -0,0 +1,17 @@
+// serverData returns the per-page data the backend injected for this render, or
+// null when there's none.
+//
+// Three render contexts, one accessor:
+//   - ISR server render (goja): the handler sets globalThis.__SERVER_DATA__
+//     before rendering, so the page renders with real data.
+//   - Browser takeover: the handler inlines the same data as
+//     <script>window.__SERVER_DATA__ = {...}</script> before the bundle, so the
+//     client re-renders identical markup (no refetch, no flash).
+//   - Static skeleton bake (cmd/bundle): nothing is set, so this returns null
+//     and the component renders its placeholder/skeleton.
+//
+// Read it inside the reactive body (not captured at module load) so the value is
+// observed at render time in every context.
+export function serverData<T>(): T | null {
+    return ((globalThis as unknown as { __SERVER_DATA__?: T }).__SERVER_DATA__) ?? null;
+}