Public rule and detail page added

app/api/rules/[id]/route.ts

@@ -0,0 +1,21 @@
+import { NextResponse } from "next/server";
+import { isDatabaseConfigured } from "../../../../lib/server/env";
+import { dbUnavailable } from "../../../../lib/server/responses";
+import { getPublicPublishedRuleById } from "../../../../lib/server/publishedRules";
+
+type RouteContext = { params: Promise<{ id: string }> };
+
+export async function GET(_request: Request, context: RouteContext) {
+  if (!isDatabaseConfigured()) {
+    return dbUnavailable();
+  }
+
+  const { id } = await context.params;
+
+  const rule = await getPublicPublishedRuleById(id);
+  if (!rule) {
+    return NextResponse.json({ error: "Not found" }, { status: 404 });
+  }
+
+  return NextResponse.json({ rule });
+}