feat(cli): add os-aware install hints for minio extractor dependencies

src/cli/minioExtractors.test.ts

@@ -1,6 +1,7 @@
 import { describe, it, expect } from 'vitest';
 import {
   checkMinioExtractorStatus,
+  getMinioExtractorInstallHints,
   renderMinioExtractorSetupLines,
   summarizeMinioExtractorStatus,
 } from './minioExtractors.js';
@@ -38,4 +39,25 @@ describe('minio extractor requirements', () => {
     expect(status.availableDocxExtractors).toEqual(['pandoc']);
     expect(status.missingRequirements).toEqual([]);
   });
+
+  it('returns Homebrew install hint on macOS when extractors are missing', async () => {
+    const status = await checkMinioExtractorStatus(
+      { backup: { minio: { enabled: true } } },
+      async () => false,
+    );
+    const hints = await getMinioExtractorInstallHints(status, { platform: 'darwin' });
+    expect(hints).toEqual(['brew install poppler pandoc']);
+  });
+
+  it('returns apt-get install hint on Linux when apt-get is available', async () => {
+    const status = await checkMinioExtractorStatus(
+      { backup: { minio: { enabled: true } } },
+      async () => false,
+    );
+    const hints = await getMinioExtractorInstallHints(status, {
+      platform: 'linux',
+      exists: async (command) => command === 'apt-get',
+    });
+    expect(hints).toEqual(['sudo apt-get install -y poppler-utils pandoc']);
+  });
 });