fix: Windows spawn, prefab path, preview API, asset deps, error messages; add execute-context resource, tool descriptions, scene/script/asset tools

Bug fixes (verified against Cocos Creator 3.8.8):
- diagnostics: shell:true for .cmd/.bat on Windows (T125/T126)
- prefabs: duplicatePrefab target resolves under assets/ (T420)
- cocos-project: add preview.open candidate for 3.8.8 (T444)
- assets-advanced: detect directory assets in inspectAssetDependencies (T110)
- scene: improve component-not-found errors with compilation hint (T429)

Documentation improvements:
- tool-registry: add enum and injected vars to execute_javascript, path format examples, asset ref limitation note
- resources: add cocos://mcp/execute-context resource with variables, patterns, pitfalls

New tools (core 37->38, full 101->110):
- scene-management: create_scene, query_scene_state (core), copy_paste_node, rename_node, reparent_node
- scripts: create_script with component/plain templates
- prefabs: create_prefab
- assets-advanced: batch_asset_ops, find_unused_assets

scene.js

@@ -761,6 +761,82 @@ exports.methods = {
     };
   },
 
+  async renameNode(options = {}) {
+    const node = findNode(options);
+    if (!node) {
+      throw new Error('Target node was not found.');
+    }
+
+    const oldName = node.name;
+    const oldPath = getNodePath(node);
+    const newName = String(options.newName || '').trim();
+    if (!newName) {
+      throw new Error('newName is required.');
+    }
+
+    node.name = newName;
+
+    return {
+      renamed: true,
+      oldName,
+      newName,
+      oldPath,
+      newPath: getNodePath(node),
+      uuid: node.uuid,
+    };
+  },
+
+  async reparentNode(options = {}) {
+    const node = findNode(options);
+    if (!node) {
+      throw new Error('Target node was not found.');
+    }
+
+    const oldPath = getNodePath(node);
+    const oldParent = node.parent;
+    const keepWorldTransform = options.keepWorldTransform === true;
+    const oldWorldPos = keepWorldTransform ? node.worldPosition.clone() : null;
+    const oldWorldRot = keepWorldTransform ? node.worldRotation.clone() : null;
+    const oldWorldScale = keepWorldTransform ? node.worldScale.clone() : null;
+
+    let newParent = null;
+    if (options.targetUuid) {
+      newParent = findNodeByUuid(options.targetUuid);
+    } else if (options.targetPath) {
+      newParent = findNodeByPath(options.targetPath);
+    } else if (options.targetName) {
+      newParent = findNodeByName(options.targetName);
+    }
+
+    if (!newParent) {
+      throw new Error('Target parent node was not found.');
+    }
+
+    const siblingIndex = Number.isFinite(options.siblingIndex) ? options.siblingIndex : -1;
+    if (siblingIndex >= 0 && siblingIndex <= newParent.children.length) {
+      newParent.insertChild(node, siblingIndex);
+    } else {
+      node.parent = newParent;
+    }
+
+    if (keepWorldTransform) {
+      node.worldPosition = oldWorldPos;
+      node.worldRotation = oldWorldRot;
+      node.worldScale = oldWorldScale;
+    }
+
+    return {
+      reparented: true,
+      uuid: node.uuid,
+      oldPath,
+      newPath: getNodePath(node),
+      oldParent: oldParent ? oldParent.name : null,
+      newParent: newParent.name,
+      siblingIndex: node.getSiblingIndex(),
+      keepWorldTransform,
+    };
+  },
+
   async setNodeTransform(options = {}) {
     const node = findNode(options);
     if (!node) {
@@ -847,7 +923,7 @@ exports.methods = {
 
     const component = findComponent(node, options);
     if (!component) {
-      throw new Error('Target component was not found.');
+      throw new Error(`Target component was not found${options.componentName ? ': ' + options.componentName : ''}. Ensure the script is compiled and the component is attached to the node.`);
     }
 
     const componentName = component.constructor ? component.constructor.name : 'UnknownComponent';
@@ -867,7 +943,7 @@ exports.methods = {
 
     const component = findComponent(node, options);
     if (!component) {
-      throw new Error('Target component was not found.');
+      throw new Error(`Target component was not found${options.componentName ? ': ' + options.componentName : ''}. Ensure the script is compiled and the component is attached to the node.`);
     }
 
     return {
@@ -892,7 +968,7 @@ exports.methods = {
 
     const component = findComponent(node, options);
     if (!component) {
-      throw new Error('Target component was not found.');
+      throw new Error(`Target component was not found${options.componentName ? ': ' + options.componentName : ''}. Ensure the script is compiled and the component is attached to the node.`);
     }
 
     setValueByPath(component, options.propertyPath, options.value);
@@ -913,7 +989,7 @@ exports.methods = {
 
     const component = findComponent(node, options);
     if (!component) {
-      throw new Error('Target component was not found.');
+      throw new Error(`Target component was not found${options.componentName ? ': ' + options.componentName : ''}. Ensure the script is compiled and the component is attached to the node.`);
     }
 
     resetValueByPath(component, options.propertyPath);
@@ -1410,7 +1486,7 @@ exports.methods = {
 
     const component = findComponent(target, { componentName });
     if (!component) {
-      throw new Error(`Target component was not found: ${componentName}`);
+      throw new Error(`Target component was not found: ${componentName}. Ensure the script is compiled and the component is attached to the target node.`);
     }
     if (typeof component[handlerName] !== 'function') {
       throw new Error(`Target component method was not found: ${componentName}.${handlerName}`);
@@ -1465,7 +1541,7 @@ exports.methods = {
     }
     const component = findComponent(node, options);
     if (!component) {
-      throw new Error('Target component was not found.');
+      throw new Error(`Target component was not found${options.componentName ? ': ' + options.componentName : ''}. Ensure the script is compiled and the component is attached to the node.`);
     }
     const methodName = String(options.methodName || '').trim();
     if (!methodName || typeof component[methodName] !== 'function') {