feat: govern contract registries and snapshots

tests/unit/registry-governance.test.js

@@ -0,0 +1,21 @@
+import { readFile } from "node:fs/promises";
+import { describe, expect, it } from "vitest";
+
+describe("registry governance manifest", () => {
+  it("declares exactly eight single-owner registries and impact labels", async () => {
+    const governance = JSON.parse(
+      await readFile("config/contracts/registry-governance.json", "utf8"),
+    );
+    expect(governance.registries).toHaveLength(8);
+    expect(new Set(governance.registries.map((entry) => entry.registryId)).size).toBe(
+      8,
+    );
+    expect(governance.registries.every((entry) => entry.owner)).toBe(true);
+    expect(governance.compatibilityImpact.allowed).toEqual([
+      "none",
+      "additive",
+      "behavior-change",
+      "breaking",
+    ]);
+  });
+});