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/client-oauth2/src/constants 2.ts

@@ -0,0 +1,62 @@
+import type { Headers } from './types';
+
+export const DEFAULT_URL_BASE = 'https://example.org/';
+
+/**
+ * Default headers for executing OAuth 2.0 flows.
+ */
+export const DEFAULT_HEADERS: Headers = {
+	Accept: 'application/json, application/x-www-form-urlencoded',
+	'Content-Type': 'application/x-www-form-urlencoded',
+};
+
+/**
+ * Format error response types to regular strings for displaying to clients.
+ *
+ * Reference: http://tools.ietf.org/html/rfc6749#section-4.1.2.1
+ */
+export const ERROR_RESPONSES: Record<string, string> = {
+	invalid_request: [
+		'The request is missing a required parameter, includes an',
+		'invalid parameter value, includes a parameter more than',
+		'once, or is otherwise malformed.',
+	].join(' '),
+	invalid_client: [
+		'Client authentication failed (e.g., unknown client, no',
+		'client authentication included, or unsupported',
+		'authentication method).',
+	].join(' '),
+	invalid_grant: [
+		'The provided authorization grant (e.g., authorization',
+		'code, resource owner credentials) or refresh token is',
+		'invalid, expired, revoked, does not match the redirection',
+		'URI used in the authorization request, or was issued to',
+		'another client.',
+	].join(' '),
+	unauthorized_client: [
+		'The client is not authorized to request an authorization',
+		'code using this method.',
+	].join(' '),
+	unsupported_grant_type: [
+		'The authorization grant type is not supported by the',
+		'authorization server.',
+	].join(' '),
+	access_denied: ['The resource owner or authorization server denied the request.'].join(' '),
+	unsupported_response_type: [
+		'The authorization server does not support obtaining',
+		'an authorization code using this method.',
+	].join(' '),
+	invalid_scope: ['The requested scope is invalid, unknown, or malformed.'].join(' '),
+	server_error: [
+		'The authorization server encountered an unexpected',
+		'condition that prevented it from fulfilling the request.',
+		'(This error code is needed because a 500 Internal Server',
+		'Error HTTP status code cannot be returned to the client',
+		'via an HTTP redirect.)',
+	].join(' '),
+	temporarily_unavailable: [
+		'The authorization server is currently unable to handle',
+		'the request due to a temporary overloading or maintenance',
+		'of the server.',
+	].join(' '),
+};