Website restoration: Node.js backend, restored design, GitHub sync disabled

- Replaced broken .NET backend with Node.js/Express
- Restored original website design with purple gradient hero
- Updated homepage and shop pages with Bootstrap 5 responsive design
- Disabled GitHub remote sync - all code now stored locally only
- Created backup scripts and documentation
- All changes saved on Ubuntu server at /var/www/SkyArtShop

backend/node_modules/express-validator/lib/utils.d.ts

@@ -0,0 +1,12 @@
+import { Request } from './base';
+import { ContextRunningOptions, ResultWithContext, ValidationChainLike } from './chain';
+export declare const bindAll: <T>(object: T) => { [K in keyof T]: T[K]; };
+export declare function toString(value: any): string;
+/**
+ * Runs all validation chains, and returns their results.
+ *
+ * If one of them has a request-level bail set, the previous chains will be awaited on so that
+ * results are not skewed, which can be slow.
+ * If this same chain also contains errors, no further chains are run.
+ */
+export declare function runAllChains(req: Request, chains: readonly ValidationChainLike[], runOpts?: ContextRunningOptions): Promise<ResultWithContext[]>;