Fix extension repair and add Opus 4.7 overlay

tests/model-harness.test.ts

@@ -7,6 +7,7 @@ import { join } from "node:path";
 import { resolveInitialPrompt, shouldRunInteractiveSetup } from "../src/cli.js";
 import { buildModelStatusSnapshotFromRecords, chooseRecommendedModel } from "../src/model/catalog.js";
 import { resolveModelProviderForCommand, setDefaultModelSpec } from "../src/model/commands.js";
+import { createModelRegistry } from "../src/model/registry.js";
 
 function createAuthPath(contents: Record<string, unknown>): string {
 	const root = mkdtempSync(join(tmpdir(), "feynman-auth-"));
@@ -26,6 +27,17 @@ test("chooseRecommendedModel prefers the strongest authenticated research model"
 	assert.equal(recommendation?.spec, "anthropic/claude-opus-4-6");
 });
 
+test("createModelRegistry overlays new Anthropic Opus model before upstream Pi updates", () => {
+	const authPath = createAuthPath({
+		anthropic: { type: "api_key", key: "anthropic-test-key" },
+	});
+
+	const registry = createModelRegistry(authPath);
+
+	assert.ok(registry.find("anthropic", "claude-opus-4-7"));
+	assert.equal(registry.getAvailable().some((model) => model.provider === "anthropic" && model.id === "claude-opus-4-7"), true);
+});
+
 test("setDefaultModelSpec accepts a unique bare model id from authenticated models", () => {
 	const authPath = createAuthPath({
 		openai: { type: "api_key", key: "openai-test-key" },

tests/package-ops.test.ts

@@ -6,13 +6,17 @@ import { join, resolve } from "node:path";
 
 import { installPackageSources, seedBundledWorkspacePackages, updateConfiguredPackages } from "../src/pi/package-ops.js";
 
-function createBundledWorkspace(appRoot: string, packageNames: string[]): void {
+function createBundledWorkspace(
+	appRoot: string,
+	packageNames: string[],
+	dependenciesByPackage: Record<string, Record<string, string>> = {},
+): void {
 	for (const packageName of packageNames) {
 		const packageDir = resolve(appRoot, ".feynman", "npm", "node_modules", packageName);
 		mkdirSync(packageDir, { recursive: true });
 		writeFileSync(
 			join(packageDir, "package.json"),
-			JSON.stringify({ name: packageName, version: "1.0.0" }, null, 2) + "\n",
+			JSON.stringify({ name: packageName, version: "1.0.0", dependencies: dependenciesByPackage[packageName] }, null, 2) + "\n",
 			"utf8",
 		);
 	}
@@ -76,6 +80,33 @@ test("seedBundledWorkspacePackages preserves existing installed packages", () =>
 	assert.equal(lstatSync(existingPackageDir).isSymbolicLink(), false);
 });
 
+test("seedBundledWorkspacePackages repairs broken existing bundled packages", () => {
+	const appRoot = mkdtempSync(join(tmpdir(), "feynman-bundle-"));
+	const homeRoot = mkdtempSync(join(tmpdir(), "feynman-home-"));
+	const agentDir = resolve(homeRoot, "agent");
+	const existingPackageDir = resolve(homeRoot, "npm-global", "lib", "node_modules", "pi-markdown-preview");
+
+	mkdirSync(agentDir, { recursive: true });
+	createBundledWorkspace(appRoot, ["pi-markdown-preview", "puppeteer-core"], {
+		"pi-markdown-preview": { "puppeteer-core": "^24.0.0" },
+	});
+	mkdirSync(existingPackageDir, { recursive: true });
+	writeFileSync(
+		resolve(existingPackageDir, "package.json"),
+		JSON.stringify({ name: "pi-markdown-preview", version: "broken", dependencies: { "puppeteer-core": "^24.0.0" } }) + "\n",
+		"utf8",
+	);
+
+	const seeded = seedBundledWorkspacePackages(agentDir, appRoot, ["npm:pi-markdown-preview"]);
+
+	assert.deepEqual(seeded, ["npm:pi-markdown-preview"]);
+	assert.equal(lstatSync(existingPackageDir).isSymbolicLink(), true);
+	assert.equal(
+		readFileSync(resolve(existingPackageDir, "package.json"), "utf8").includes('"version": "1.0.0"'),
+		true,
+	);
+});
+
 test("installPackageSources filters noisy npm chatter but preserves meaningful output", async () => {
 	const root = mkdtempSync(join(tmpdir(), "feynman-package-ops-"));
 	const workingDir = resolve(root, "project");