fix(javascript): ignore async exec stdio options (#7087)

Respect Node asynchronous exec/execFile method-default stdio instead of interpreting an ignored option. Remove the superseded callback-shape query while preserving caller input, Evidence, uncertainty, argv and fork controls. Independently validated on current main through actual Node pipe capture, matching real-app CLI/MCP facts, 81 targeted tests and static checking. Closes #7217.

src/domain/javascript/javascriptSemanticExpressionShapes.ts

@@ -23,7 +23,7 @@ import {
 import { traverseJavaScriptAst } from "./javascriptSemanticTraversal.js";
 import { javaScriptRuntimeContext } from "./javascriptSourceParser.js";
 
-type Shape = "array" | "callback" | "unknown";
+type Shape = "array" | "unknown";
 
 /** Bounded argument-shape queries shared by call-signature owners. */
 export type JavaScriptExpressionShapeResolver = ReturnType<
@@ -41,15 +41,6 @@ const commonJsWrapperParameterNames = new Set([
 export const createSemanticExpressionShapeResolver = (
   state: JavaScriptSemanticAnalysisState,
 ) => {
-  const hoistedFunction = (node: t.Node): boolean => {
-    const parent = state.parentsByNode.get(node);
-    return (
-      t.isFunctionDeclaration(node) &&
-      (t.isProgram(parent) ||
-        (t.isBlockStatement(parent) &&
-          t.isFunction(state.parentsByNode.get(parent))))
-    );
-  };
   // Most modules have no named child arguments. Collect source-wide blockers
   // only when a query actually needs a named binding or ambient undefined.
   let blocked: boolean | undefined;
@@ -80,8 +71,6 @@ export const createSemanticExpressionShapeResolver = (
       if (seen.has(node)) return "unknown";
       seen.add(node);
       if (t.isArrayExpression(node)) return "array";
-      if (t.isFunction(node) && !("declare" in node && node.declare))
-        return "callback";
       if (!t.isIdentifier(node)) return "unknown";
       const binding = resolveSemanticBindingState(state, node, node.name);
       if (binding === undefined || binding.referenceInitializers.length > 0)
@@ -106,11 +95,7 @@ export const createSemanticExpressionShapeResolver = (
       if (initializer === undefined || initializer.projection.length > 0)
         return "unknown";
       const read = semanticBindingAtRead(binding, node, state.parentsByNode);
-      // Hoisted function declarations are the only accepted unordered source.
-      if (
-        !hoistedFunction(initializer.node) &&
-        (read.status !== "ordered" || !read.hasDefiniteInitializer)
-      )
+      if (read.status !== "ordered" || !read.hasDefiniteInitializer)
         return "unknown";
       node = initializer.node;
       depth++;
@@ -118,7 +103,6 @@ export const createSemanticExpressionShapeResolver = (
   };
   return {
     isArray: (node: t.Node) => shape(node) === "array",
-    isCallback: (node: t.Node) => shape(node) === "callback",
     isNullish: (input: t.Node) => {
       const { node } = unwrapJavaScriptExpression(input);
       return (