fix(web): recover native geometry batches after fixture crashes

my-tools/authorize_next_wbv2_task.py

@@ -434,7 +434,7 @@ def native_geometry_batch(inventory: dict) -> dict | None:
         and unit.get("coverageStatus") != "VERIFIED"
         and unit.get("kind") == "node"
         and isinstance(unit.get("identifier"), str)
-        and unit["identifier"].startswith("GeometryNode")
+        and (unit["identifier"].startswith("GeometryNode") or unit["identifier"].startswith("FunctionNode"))
     ]
     if not candidates:
         return None
@@ -461,6 +461,29 @@ def native_geometry_batch(inventory: dict) -> dict | None:
     }
 
 
+def prepare_native_fixture(batch: dict, task: str, contract: dict) -> dict:
+    """Generate a native fixture, shrinking only when Blender rejects a mix."""
+    if not (batch.get("nativeCompositorFixture") or batch.get("nativeGeometryFixture")):
+        return contract
+    while True:
+        try:
+            if batch.get("nativeCompositorFixture"):
+                ensure_native_compositor_fixture(batch, contract)
+            else:
+                ensure_native_geometry_fixture(batch, contract)
+            return contract
+        except SystemExit:
+            units = list(batch.get("units", []))
+            if len(units) <= 1:
+                raise
+            units = units[: max(1, len(units) // 2)]
+            batch["units"] = units
+            batch["identifiers"] = [unit["identifier"] for unit in units]
+            batch["types"] = [unit["identifier"] for unit in units]
+            batch.pop("fixture", None)
+            contract = batch_contract(task, batch)
+
+
 def recover_blocked_native_batch(current: str, index: dict, plan: dict, inventory: dict) -> bool:
     """Shrink one failed auto-native batch to the last proven fixture shape.
 
@@ -856,12 +879,13 @@ def main() -> int:
         digest = contract["batchId"].rsplit(":", 1)[-1]
         batch["fixture"] = f"tests/files/web/generated/wbv2-compositor-{digest}.blend"
         if args.write:
-            ensure_native_compositor_fixture(batch, contract)
+            contract = prepare_native_fixture(batch, module_task, contract)
     if batch.get("nativeGeometryFixture"):
         digest = contract["batchId"].rsplit(":", 1)[-1]
         batch["fixture"] = f"tests/files/web/generated/wbv2-geometry-{digest}.blend"
         if args.write:
-            ensure_native_geometry_fixture(batch, contract)
+            contract = prepare_native_fixture(batch, module_task, contract)
+    batch["batchId"] = contract["batchId"]
     write_planner_status({
         "status": "ready",
         "reason": "source_backed_batch_selected",