优化engine

backend/app/services/engine_service.py

@@ -105,15 +105,13 @@ def validate_cdsl(cdsl: dict[str, Any], engine: Any) -> None:
         if not fid or fid in feature_ids:
             raise ValueError("Feature ids must be unique")
         feature_ids.add(fid)
-        if feature.get("execution_status") not in (None, "supported"):
-            raise ValueError(f"Feature {fid} is deferred and cannot be rebuilt by the current engine")
-        if str(feature.get("sketch_id") or "") not in sketch_ids:
-            raise ValueError(f"Feature {fid} refers to a missing sketch")
         atomic_id = str(feature.get("atomic_id") or "")
         if not atomic_id:
             raise ValueError(f"Feature {fid} has no atomic_id")
         contract = atomic_contracts.get(atomic_id)
         if atomic_id not in supported_atomic_ids or not isinstance(contract, dict):
+            if feature.get("execution_status") == "deferred":
+                raise ValueError(f"Feature {fid} is deferred and cannot be rebuilt by the current engine")
             raise ValueError(
                 f"Unsupported CDSL atomic_id: {atomic_id}. Supported: {', '.join(supported_atomic_ids)}"
             )
@@ -145,9 +143,15 @@ def validate_cdsl(cdsl: dict[str, Any], engine: Any) -> None:
         elif profile_type not in engine.SHAPE_GENERATORS:
             raise ValueError(f"Unsupported CDSL profile: {profile_type}")
     try:
-        engine.compile_cdsl(copy.deepcopy(cdsl))
+        analysis = engine.analyze_cdsl(copy.deepcopy(cdsl))
     except Exception as error:
-        raise ValueError(f"CDSL engine compile preflight failed: {error}") from error
+        raise ValueError(f"CDSL engine runtime preflight failed: {error}") from error
+    if not analysis.runtime_eligible:
+        first = next((result for result in analysis.feature_results if not result.executable), None)
+        if first is None:
+            raise ValueError(f"CDSL engine runtime preflight failed: {analysis.document_blockers[0].code}")
+        blockers = ", ".join(blocker.code for blocker in first.blockers)
+        raise ValueError(f"CDSL engine runtime preflight failed: feature {first.feature_id}: {blockers}")
 
 
 def _parameter_id(path: list[str]) -> str:
@@ -355,7 +359,10 @@ def build_revision(
     write_json(parameters_path, contract)
 
     try:
-        engine_result = engine.run_rebuild(cdsl_copy, step_path)
+        # Product revisions are semantic CDSL artifacts.  Do not route them
+        # through the legacy rebuild entry point, which is allowed to use
+        # compiler_context/translator compatibility fallbacks.
+        engine_result = engine.run_cdsl_only(cdsl_copy, step_path)
         if engine_result.get("engine") != "cdsl_only" or not step_path.is_file() or step_path.stat().st_size == 0:
             raise RuntimeError("Engine did not produce a CDSL-only STEP artifact")
         preview = step_to_glb(step_path, glb_path)