fix: preserve plugin runtime registry state

src/plugins/capability-runtime-vitest-shims/speech-core.ts

@@ -24,6 +24,14 @@ export {
   requireInRange,
   scheduleCleanup,
 } from "../../plugin-sdk/speech-core.js";
+export {
+  asBoolean,
+  asFiniteNumber,
+  asObject,
+  readResponseTextLimited,
+  trimToUndefined,
+  truncateErrorDetail,
+} from "../../tts/provider-error-utils.js";
 
 export async function summarizeText(): Promise<never> {
   throw new Error("summarizeText is unavailable in the Vitest capability contract shim");

src/plugins/setup-registry.ts

@@ -74,6 +74,7 @@ const setupRegistryCache = new Map<string, PluginSetupRegistry>();
 const setupProviderCache = new Map<string, ProviderPlugin | null>();
 
 export function clearPluginSetupRegistryCache(): void {
+  jitiLoaders.clear();
   setupRegistryCache.clear();
   setupProviderCache.clear();
 }