feat(cli): enforce minio ingestion extractor checks in setup and doctor

docs/plans/state.json

@@ -172,6 +172,23 @@
       ],
       "test_status": "pnpm test:run src/tools/builtin/minio-ingest.test.ts src/tools/builtin/minio-sync.test.ts + pnpm typecheck passing"
     },
+    "minio-ingestion-extractor-requirements-setup-and-doctor": {
+      "status": "completed",
+      "date": "2026-02-16",
+      "updated": "2026-02-16",
+      "summary": "Documented MinIO ingestion runtime extractor requirements (PDF: `pdftotext`, DOCX: `pandoc` or `docx2txt`) and added shared dependency checks in setup + doctor flows. `flynn setup` now reports extractor readiness after config save when MinIO is enabled, and `flynn doctor` now includes a `MinIO ingest extractors` check.",
+      "files_modified": [
+        "src/cli/minioExtractors.ts",
+        "src/cli/minioExtractors.test.ts",
+        "src/cli/setup.ts",
+        "src/cli/doctor.ts",
+        "src/cli/doctor.test.ts",
+        "README.md",
+        "docs/api/TOOLS.md",
+        "docs/plans/state.json"
+      ],
+      "test_status": "pnpm test:run src/cli/minioExtractors.test.ts src/cli/doctor.test.ts + pnpm typecheck passing"
+    },
     "backup-session-summary-audit-trail": {
       "status": "completed",
       "date": "2026-02-16",
@@ -3456,7 +3473,7 @@
     }
   },
   "overall_progress": {
-    "total_test_count": 1852,
+    "total_test_count": 1857,
     "all_tests_passing": true,
     "p0_completion": "3/3 (100%)",
     "p1_completion": "4/4 (100%)",