fix(lab): restore canonical vegetation evidence layers

tests/test_advanced_laboratory_api.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import os
 from pathlib import Path, PurePosixPath
 from types import SimpleNamespace
 
@@ -151,6 +152,72 @@ def test_advanced_index_projects_one_most_mature_lifecycle_phase(tmp_path: Path)
     ]
 
 
+def test_advanced_index_skips_noncanonical_vegetation_viewers(tmp_path: Path) -> None:
+    root = tmp_path / "vegetation"
+
+    def publish(digest: str, *, canonical: bool) -> Path:
+        result_id = f"lab-v1-vegetation-shadow-{digest}"
+        candidate = root / result_id
+        candidate.mkdir(parents=True)
+        route_video = {
+            "view_kind": "coarse-material-policy-review",
+            "base_m4_result_id": f"m4-threat-replay-{'1' * 64}",
+            "linked_tgs_result_id": f"m49-tgs-full-shadow-{'2' * 64}",
+            "fusion": {
+                "mode": "synchronised-multilayer-review",
+                "pixel_raster_fusion": False,
+            },
+        } if canonical else None
+        (candidate / "manifest.json").write_text(
+            json.dumps(
+                {
+                    "schema_version": "missioncore.lab-v1-vegetation-shadow/v1",
+                    "result_id": result_id,
+                    "identity_sha256": digest,
+                    "identity": {
+                        "authority": {
+                            "commands_enabled": False,
+                            "navigation_or_safety_accepted": False,
+                        }
+                    },
+                    "created_at_utc": "2026-08-29T10:00:00Z",
+                    "ground_truth": False,
+                    "route_video": route_video,
+                    "route_review": None,
+                    "route_full_review": None if canonical else {"frame_count": 6830},
+                }
+            ),
+            encoding="utf-8",
+        )
+        return candidate
+
+    canonical = publish("a" * 64, canonical=True)
+    incomplete = publish("b" * 64, canonical=False)
+    os.utime(canonical, ns=(10_000_000_000, 10_000_000_000))
+    os.utime(incomplete, ns=(20_000_000_000, 20_000_000_000))
+    registry = _evidence_registry(
+        root,
+        work_id="lab-v1-vegetation-shadow",
+        result_id_prefix="lab-v1-vegetation-shadow",
+        schema_version="missioncore.lab-v1-vegetation-shadow/v1",
+    )
+    router = build_advanced_laboratory_router(
+        evidence_registry=registry,
+        evidence_runtime_root_provider=lambda: root.parent,
+    )
+
+    index = _endpoint(router, "/api/v1/laboratory/advanced-index")()
+
+    assert index["items"] == [  # type: ignore[index]
+        {
+            "work_id": "lab-v1-vegetation-shadow",
+            "result_id": canonical.name,
+            "created_at_utc": "2026-08-29T10:00:00Z",
+            "access": "read-only",
+        }
+    ]
+
+
 def test_advanced_index_includes_valid_l31_identity(
     tmp_path: Path,
     monkeypatch: MonkeyPatch,