feat: integrate Pi backend and Pi Web

pi/packages/coding-agent/test/model-runtime-test-utils.ts

@@ -0,0 +1,25 @@
+import type { CredentialStore } from "@earendil-works/pi-ai";
+import { ModelRegistry } from "../src/core/model-registry.ts";
+import { ModelRuntime } from "../src/core/model-runtime.ts";
+
+const runtimes = new WeakMap<ModelRegistry, ModelRuntime>();
+
+function wrap(runtime: ModelRuntime): ModelRegistry {
+	const registry = new ModelRegistry(runtime);
+	runtimes.set(registry, runtime);
+	return registry;
+}
+
+export async function createModelRegistry(credentials: CredentialStore, modelsPath?: string): Promise<ModelRegistry> {
+	return wrap(await ModelRuntime.create({ credentials, modelsPath, allowModelNetwork: false }));
+}
+
+export async function createInMemoryModelRegistry(credentials: CredentialStore): Promise<ModelRegistry> {
+	return wrap(await ModelRuntime.create({ credentials, modelsPath: null, allowModelNetwork: false }));
+}
+
+export function getModelRuntime(modelRegistry: ModelRegistry): ModelRuntime {
+	const runtime = runtimes.get(modelRegistry);
+	if (!runtime) throw new Error("ModelRegistry was not created by the test helper");
+	return runtime;
+}