Build Verse: a poem-quote app on the agent-native chat template

Adds a Postgres-backed quotes domain (poems/quotes/favorites) exposed as
five agent-native actions (list-quotes, get-random-quote, create-quote,
toggle-favorite, list-favorites) callable from both chat and the React UI
via useActionQuery/useActionMutation. Moves the primary UI from chat to a
mobile-first Quotes/Favorites experience (chat moves to /chat), adds
manual OpenTelemetry instrumentation exporting traces/metrics/logs over
OTLP, and wires a local Docker Postgres for shared state.

server/db/index.ts

@@ -0,0 +1,12 @@
+import { createGetDb } from "@agent-native/core/db";
+
+import * as schema from "./schema.js";
+
+export const getDb = createGetDb(schema);
+
+// Convenience: callable as db().select()...
+export function db() {
+  return getDb();
+}
+
+export { schema };