test: dedupe agent tests and session helpers

src/agents/skills-install.test-mocks.ts

@@ -0,0 +1,32 @@
+import { vi } from "vitest";
+
+export const runCommandWithTimeoutMock = vi.fn();
+export const scanDirectoryWithSummaryMock = vi.fn();
+export const fetchWithSsrFGuardMock = vi.fn();
+export const hasBinaryMock = vi.fn();
+
+export function runCommandWithTimeoutFromMock(...args: unknown[]) {
+  return runCommandWithTimeoutMock(...args);
+}
+
+export function fetchWithSsrFGuardFromMock(...args: unknown[]) {
+  return fetchWithSsrFGuardMock(...args);
+}
+
+export function hasBinaryFromMock(...args: unknown[]) {
+  return hasBinaryMock(...args);
+}
+
+export function scanDirectoryWithSummaryFromMock(...args: unknown[]) {
+  return scanDirectoryWithSummaryMock(...args);
+}
+
+export async function mockSkillScannerModule(
+  importOriginal: () => Promise<typeof import("../security/skill-scanner.js")>,
+) {
+  const actual = await importOriginal();
+  return {
+    ...actual,
+    scanDirectoryWithSummary: scanDirectoryWithSummaryFromMock,
+  };
+}