fix: 修复TypeScript配置错误并更新项目文档

详细说明:
- 修复了@n8n/config包的TypeScript配置错误
- 移除了不存在的jest-expect-message类型引用
- 清理了所有TypeScript构建缓存
- 更新了可行性分析文档，添加了技术实施方案
- 更新了Agent prompt文档
- 添加了会展策划工作流文档
- 包含了n8n-chinese-translation子项目
- 添加了exhibition-demo展示系统框架

n8n-n8n-1.109.2/packages/@n8n/ai-workflow-builder.ee/src/llm-config 2.ts

@@ -0,0 +1,60 @@
+// Different LLMConfig type for this file - specific to LLM providers
+interface LLMProviderConfig {
+	apiKey: string;
+	baseUrl?: string;
+	headers?: Record<string, string>;
+}
+
+export const o4mini = async (config: LLMProviderConfig) => {
+	const { ChatOpenAI } = await import('@langchain/openai');
+	return new ChatOpenAI({
+		model: 'o4-mini-2025-04-16',
+		apiKey: config.apiKey,
+		configuration: {
+			baseURL: config.baseUrl,
+			defaultHeaders: config.headers,
+		},
+	});
+};
+
+export const gpt41mini = async (config: LLMProviderConfig) => {
+	const { ChatOpenAI } = await import('@langchain/openai');
+	return new ChatOpenAI({
+		model: 'gpt-4.1-mini-2025-04-14',
+		apiKey: config.apiKey,
+		temperature: 0,
+		maxTokens: -1,
+		configuration: {
+			baseURL: config.baseUrl,
+			defaultHeaders: config.headers,
+		},
+	});
+};
+
+export const gpt41 = async (config: LLMProviderConfig) => {
+	const { ChatOpenAI } = await import('@langchain/openai');
+	return new ChatOpenAI({
+		model: 'gpt-4.1-2025-04-14',
+		apiKey: config.apiKey,
+		temperature: 0.3,
+		maxTokens: -1,
+		configuration: {
+			baseURL: config.baseUrl,
+			defaultHeaders: config.headers,
+		},
+	});
+};
+
+export const anthropicClaudeSonnet4 = async (config: LLMProviderConfig) => {
+	const { ChatAnthropic } = await import('@langchain/anthropic');
+	return new ChatAnthropic({
+		model: 'claude-sonnet-4-20250514',
+		apiKey: config.apiKey,
+		temperature: 0,
+		maxTokens: 16000,
+		anthropicApiUrl: config.baseUrl,
+		clientOptions: {
+			defaultHeaders: config.headers,
+		},
+	});
+};