优化加载后删除节点的逻辑；和数据库查询性能

sync_state_machine/engine/events.py

@@ -276,8 +276,14 @@ def e01_bootstrap(
     *,
     node: "SyncNode",
     is_create_zombie: bool,
+    bootstrap_source_present: bool = True,
+    has_binding_record: bool = False,
 ) -> Decision:
-    context = {"is_create_zombie": is_create_zombie}
+    context = {
+        "is_create_zombie": is_create_zombie,
+        "bootstrap_source_present": bootstrap_source_present,
+        "has_binding_record": has_binding_record,
+    }
     decision = _dispatch_required(
         runtime,
         node=node,
@@ -289,6 +295,15 @@ def e01_bootstrap(
         _apply_decision(runtime, node=node, decision=decision, fields={"binding_status", "action", "status"})
         node.error = None
         return decision
+    if decision.to_state == "S17":
+        _apply_decision(runtime, node=node, decision=decision, fields={"binding_status", "action", "status"})
+        reason_text = decision_note(decision) or "<no-reason>"
+        node.context["bootstrap_blocked"] = True
+        node.context["bootstrap_block_reason"] = "source_missing_after_persistence_refresh"
+        node.context["bootstrap_block_errors"] = [reason_text]
+        node.context["bootstrap_source_present"] = False
+        node.error = f"BOOTSTRAP_SOURCE_MISSING: {reason_text}"
+        return decision
     if decision.to_state == "S15":
         reason_text = decision_note(decision) or "<no-reason>"
         node.append_log(