Major refacoring of the inference operator logic.

Author: afoucret

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/inference/InferenceFunctionEvaluator.java

@@ -53,10 +53,9 @@ public static InferenceFunctionEvaluator.Factory factory() {
      * Creates a new inference function evaluator with a custom operator provider.
      * This constructor is primarily used for testing to inject mock operator providers.
      *
-     * @param foldContext               the fold context containing circuit breakers and evaluation settings
      * @param inferenceOperatorProvider custom provider for creating inference operators
      */
-    InferenceFunctionEvaluator(FoldContext foldContext, InferenceOperatorProvider inferenceOperatorProvider) {
+    InferenceFunctionEvaluator(InferenceOperatorProvider inferenceOperatorProvider) {
         this.inferenceOperatorProvider = inferenceOperatorProvider;
     }
 
@@ -145,11 +144,11 @@ public CircuitBreakerStats stats(String name) {
                     } catch (Exception e) {
                         l.onFailure(e);
                     } finally {
-                        Releasables.close(inferenceOperator);
+                        Releasables.closeExpectNoException(inferenceOperator);
                     }
                 }));
             } catch (Exception e) {
-                Releasables.close(inferenceOperator);
+                Releasables.closeExpectNoException(inferenceOperator);
                 listener.onFailure(e);
             }
         } catch (Exception e) {
@@ -199,7 +198,7 @@ private Factory() {}
          * @return a new instance of {@link InferenceFunctionEvaluator}
          */
         public InferenceFunctionEvaluator create(FoldContext foldContext, InferenceService inferenceService) {
-            return new InferenceFunctionEvaluator(foldContext, createInferenceOperatorProvider(foldContext, inferenceService));
+            return new InferenceFunctionEvaluator(createInferenceOperatorProvider(foldContext, inferenceService));
         }
 
         /**