refactor: consolidate skill docs, add anti-drift tests, and apply audit fixes

DLO-13: Restructure vlm-library-workflow skill as safety contract layer.
- Rewrite SKILL.md (69 lines): safety contract, execution threshold semantics,
  six-step high-risk loop, decision rules, phase skeleton
- Delete redundant references (cli-reference, workflow, command-recipes, dev-guide)
- Add triage.md (failure mapping + preflight) and dev-map.md (module→test mapping)
- Add tests/test_docs_consistency.py: 78 parametrized tests verifying documented
  vlm commands exist in CLI registry
- Add CSV path mismatch test to test_plan_review.py (4th safety gate path)
- Delete vlm-expert.skill (Gemini package, 7 months stale) and README Gemini section

DLO-2 audit fixes: rate limiter injection, symmetric quarantine categories,
review-plan safety gates, parser improvements, planner validation.

CLI modularization: commands/ directory with one module per command group.

tests/test_plan_review.py

@@ -76,6 +76,63 @@ def test_build_identity_lookup_and_enrich(tmp_path):
     assert enriched[0]["source_name"] == "Show.S01E01.mkv"
 
 
+def test_enrich_review_rows_sidecars_column(tmp_path):
+    op = FileOperation(
+        operation_type="move",
+        source_path=tmp_path / "dl/Show.S01E01.mkv",
+        destination_path=tmp_path / "lib/series/Show/Season 01/S01E01.mkv",
+        reason="organize",
+        has_conflict=False,
+        review_context={
+            "title": "Show",
+            "category": "series",
+            "season": 1,
+            "episode": 1,
+            "sidecars": [
+                {"name": "Show.S01E01.zh.srt", "source_path": str(tmp_path / "dl/Show.S01E01.zh.srt"), "proposed_destination_path": str(tmp_path / "lib/series/Show/Season 01/Show.S01E01.zh.srt")},
+                {"name": "Show.S01E01.nfo", "source_path": str(tmp_path / "dl/Show.S01E01.nfo"), "proposed_destination_path": str(tmp_path / "lib/series/Show/Season 01/Show.S01E01.nfo")},
+            ],
+        },
+    )
+    plan = _minimal_plan([op])
+    rows = [
+        {
+            "index": "1",
+            "operation_type": "move",
+            "risk_flags": "",
+            "source_path": str(op.source_path),
+            "destination_path": str(op.destination_path),
+            "reason": op.reason,
+        }
+    ]
+    enriched = enrich_review_rows(rows, plan, library_root=tmp_path / "lib")
+    assert enriched[0]["sidecars"] == "Show.S01E01.zh.srt, Show.S01E01.nfo"
+
+
+def test_enrich_review_rows_sidecars_empty_by_default(tmp_path):
+    op = FileOperation(
+        operation_type="move",
+        source_path=tmp_path / "dl/Show.S01E01.mkv",
+        destination_path=tmp_path / "lib/series/Show/Season 01/S01E01.mkv",
+        reason="organize",
+        has_conflict=False,
+        review_context={"title": "Show", "category": "series", "season": 1, "episode": 1},
+    )
+    plan = _minimal_plan([op])
+    rows = [
+        {
+            "index": "1",
+            "operation_type": "move",
+            "risk_flags": "",
+            "source_path": str(op.source_path),
+            "destination_path": str(op.destination_path),
+            "reason": op.reason,
+        }
+    ]
+    enriched = enrich_review_rows(rows, plan, library_root=tmp_path / "lib")
+    assert enriched[0].get("sidecars", "") == ""
+
+
 def test_check_review_requirements_missing_csv(tmp_path):
     plan_path = tmp_path / "plan.json"
     op = FileOperation(
@@ -137,6 +194,30 @@ def test_check_review_requirements_passes_after_apply_review(tmp_path):
     assert errors == []
 
 
+def test_check_review_requirements_detects_csv_path_mismatch(tmp_path):
+    plan_path = tmp_path / "plan.json"
+    csv_path = tmp_path / "review.csv"
+    other_csv = tmp_path / "other.csv"
+    op = FileOperation(
+        operation_type="move",
+        source_path=tmp_path / "a.mkv",
+        destination_path=tmp_path / "lib/a.mkv",
+        reason="Series needs manual review (season exceeds configured threshold)",
+        has_conflict=True,
+    )
+    plan = _minimal_plan([op])
+    save_plan(plan, plan_path)
+    rows, _ = review_plan(plan)
+    save_review_csv(rows, csv_path)
+    save_review_csv(rows, other_csv)
+
+    updated = apply_review_to_plan(load_plan(plan_path), csv_path)
+    save_plan(updated, plan_path)
+
+    errors = check_review_requirements(load_plan(plan_path), plan_path, other_csv)
+    assert any("does not match" in e for e in errors)
+
+
 def test_planner_noop_manual_review_does_not_block_execute_gate(tmp_path):
     plan_path = tmp_path / "plan.json"
     op = FileOperation(