chore: initialize from frontend template 4dc033c

scripts/lib/json-schema.ts

@@ -0,0 +1,24 @@
+import { z } from "zod";
+
+/**
+ * Compile a checked-in JSON Schema and assert a concrete artifact against it.
+ * Conversion failures are fatal too: an unsupported or malformed schema must
+ * not silently turn a release schema into documentation-only metadata.
+ */
+export function assertMatchesJsonSchema(
+  schemaDocument: unknown,
+  value: unknown,
+  label: string,
+): void {
+  try {
+    const schema = z.fromJSONSchema(schemaDocument as never);
+    const result = schema.safeParse(value);
+    if (!result.success) {
+      throw new TypeError(z.prettifyError(result.error));
+    }
+  } catch (error) {
+    throw new TypeError(`${label} does not satisfy its checked-in JSON Schema.`, {
+      cause: error,
+    });
+  }
+}