Tests: add global web search contract suite

src/plugins/contracts/web-search-provider.contract.test.ts

@@ -0,0 +1,12 @@
+import { describe } from "vitest";
+import { webSearchProviderContractRegistry } from "./registry.js";
+import { installWebSearchProviderContractSuite } from "./suites.js";
+
+for (const entry of webSearchProviderContractRegistry) {
+  describe(`${entry.pluginId}:${entry.provider.id} web search contract`, () => {
+    installWebSearchProviderContractSuite({
+      provider: entry.provider,
+      credentialValue: entry.credentialValue,
+    });
+  });
+}