feat: DGR-001 - Lock the safetensors-versus-GGUF performance contract

packages/node/meshnet_node/recipe_benchmark.py

@@ -115,6 +115,8 @@ class BenchmarkPlan:
             raise BenchmarkError("concurrency levels must all be >= 1")
         if self.repeats < 1:
             raise BenchmarkError("repeats must be >= 1")
+        if 1 not in self.concurrency_levels or 4 not in self.concurrency_levels:
+            raise BenchmarkError("a controlled baseline must include concurrency levels 1 and 4")
 
     def to_dict(self) -> dict:
         return {
@@ -145,6 +147,9 @@ class RecipeSpec:
     lane: Lane
     device: str
     artifact_path: str = ""
+    source_model_id: str = ""
+    source_model_revision: str = ""
+    artifact_sha256: str = ""
     is_reference: bool = False
     notes: str = ""