feat(editor): Align DynamicStructuredTool and DynamicTool name fields (#14604)

feat(Code Tool Node): Use node's name instead of separate name field as tool name

feat(Vector Store Tool Node): Use node's name instead of separate name field as tool name

feat(Custom n8n Workflow Tool Node): Use node's name instead of separate name field as tool name

packages/@n8n/nodes-langchain/nodes/tools/ToolCode/ToolCode.node.test.ts

@@ -0,0 +1,81 @@
+import { mock } from 'jest-mock-extended';
+import { DynamicTool } from 'langchain/tools';
+import { type INode, type ISupplyDataFunctions } from 'n8n-workflow';
+
+import { ToolCode } from './ToolCode.node';
+
+describe('ToolCode', () => {
+	describe('supplyData', () => {
+		beforeEach(() => {
+			jest.resetAllMocks();
+		});
+
+		it('should read name from node name on version >=1.2', async () => {
+			const node = new ToolCode();
+
+			const supplyDataResult = await node.supplyData.call(
+				mock<ISupplyDataFunctions>({
+					getNode: jest.fn(() => mock<INode>({ typeVersion: 1.2, name: 'test tool' })),
+					getNodeParameter: jest.fn().mockImplementation((paramName, _itemIndex) => {
+						switch (paramName) {
+							case 'description':
+								return 'description text';
+							case 'name':
+								return 'wrong_field';
+							case 'specifyInputSchema':
+								return false;
+							case 'language':
+								return 'javaScript';
+							case 'jsCode':
+								return 'return 1;';
+							default:
+								return;
+						}
+					}),
+				}),
+				0,
+			);
+
+			expect(supplyDataResult.response).toBeInstanceOf(DynamicTool);
+
+			const tool = supplyDataResult.response as DynamicTool;
+			expect(tool.name).toBe('test_tool');
+			expect(tool.description).toBe('description text');
+			expect(tool.func).toBeInstanceOf(Function);
+		});
+
+		it('should read name from name parameter on version <1.2', async () => {
+			const node = new ToolCode();
+
+			const supplyDataResult = await node.supplyData.call(
+				mock<ISupplyDataFunctions>({
+					getNode: jest.fn(() => mock<INode>({ typeVersion: 1.1, name: 'wrong name' })),
+					getNodeParameter: jest.fn().mockImplementation((paramName, _itemIndex) => {
+						switch (paramName) {
+							case 'description':
+								return 'description text';
+							case 'name':
+								return 'test_tool';
+							case 'specifyInputSchema':
+								return false;
+							case 'language':
+								return 'javaScript';
+							case 'jsCode':
+								return 'return 1;';
+							default:
+								return;
+						}
+					}),
+				}),
+				0,
+			);
+
+			expect(supplyDataResult.response).toBeInstanceOf(DynamicTool);
+
+			const tool = supplyDataResult.response as DynamicTool;
+			expect(tool.name).toBe('test_tool');
+			expect(tool.description).toBe('description text');
+			expect(tool.func).toBeInstanceOf(Function);
+		});
+	});
+});