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/db/src/index 2.ts

@@ -0,0 +1,38 @@
+export {
+	WithStringId,
+	WithTimestamps,
+	WithTimestampsAndStringId,
+	jsonColumnType,
+	datetimeColumnType,
+	dbType,
+	JsonColumn,
+	DateTimeColumn,
+} from './entities/abstract-entity';
+
+export { generateNanoId } from './utils/generators';
+export { isStringArray } from './utils/is-string-array';
+export { isValidEmail } from './utils/is-valid-email';
+export { separate } from './utils/separate';
+export { sql } from './utils/sql';
+export { idStringifier, lowerCaser, objectRetriever, sqlite } from './utils/transformers';
+
+export * from './entities';
+export * from './entities/types-db';
+export { NoXss } from './utils/validators/no-xss.validator';
+export { NoUrl } from './utils/validators/no-url.validator';
+
+export * from './repositories';
+export * from './subscribers';
+
+export { Column as DslColumn } from './migrations/dsl/column';
+export { CreateTable } from './migrations/dsl/table';
+export { sqliteMigrations } from './migrations/sqlite';
+export { mysqlMigrations } from './migrations/mysqldb';
+export { postgresMigrations } from './migrations/postgresdb';
+
+export { wrapMigration } from './migrations/migration-helpers';
+export * from './migrations/migration-types';
+export { DbConnection } from './connection/db-connection';
+export { DbConnectionOptions } from './connection/db-connection-options';
+
+export { AuthRolesService } from './services/auth.roles.service';