添加cadfs_to_cdsl代码，优化cad生成

backend/app/cad_agent/application/capabilities.py

@@ -18,6 +18,7 @@ from app.cad_agent.application.llm_contracts import (
     stateless_final_review_schema,
     stateless_next_action_schema,
 )
+from app.cad_agent.domain.feature_plan import FeaturePlan
 from app.cad_agent.domain.operation_contract import fragment_schema
 from app.cad_agent.domain.verifier_registry import default_registry
 from app.cad_agent.ports import CadRuntime, ModelGateway
@@ -30,6 +31,8 @@ def conformance_tools(runtime: CadRuntime, *, role: CapabilityRole) -> list[dict
     if role == "reviewer":
         return [
             _tool("observe_images", ImageObservation.model_json_schema()),
+            # Compatibility conformance probe; regular DAG execution never
+            # calls a per-node reviewer.
             _tool("review_candidate", StatelessCandidateReview.model_json_schema()),
             _tool("review_final", stateless_final_review_schema(1)),
         ]
@@ -40,8 +43,9 @@ def conformance_tools(runtime: CadRuntime, *, role: CapabilityRole) -> list[dict
         _tool("write_requirements_document", MarkdownDocument.model_json_schema()),
         _tool("write_completion_target", MarkdownDocument.model_json_schema()),
         _tool("compile_requirements_spec", compiled_requirements_schema(default_registry().expected_one_of_schema(exclude_claim_kinds=frozenset({"coaxial", "coplanar"})), 1)),
+        _tool("write_feature_plan", FeaturePlan.model_json_schema()),
+        # Compatibility probe only; production v3.2 workflow never exposes it.
         _tool("write_modeling_plan", MarkdownDocument.model_json_schema()),
-        _tool("propose_next_action", stateless_next_action_schema(atomic_ids)),
         _tool("inspect_topology", StatelessTopologyRequest.model_json_schema()),
         _tool("record_geometry_conclusion", StatelessGeometryConclusion.model_json_schema()),
         _tool("rollback_checkpoint", StatelessRollbackCheckpoint.model_json_schema()),
@@ -57,7 +61,7 @@ def conformance_tools(runtime: CadRuntime, *, role: CapabilityRole) -> list[dict
 
 
 def conformance_hash(tools: list[dict[str, Any]], *, role: CapabilityRole) -> str:
-    payload = {"protocol": "cad.v3.1.markdown-first", "role": role, "tools": tools}
+    payload = {"protocol": "cad.v3.2.feature-dag", "role": role, "tools": tools}
     return sha256(json.dumps(payload, ensure_ascii=True, sort_keys=True, separators=(",", ":")).encode("utf-8")).hexdigest()