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/pg-protocol/dist/buffer-writer.d.ts

@@ -0,0 +1,16 @@
+/// <reference types="node" />
+export declare class Writer {
+    private size;
+    private buffer;
+    private offset;
+    private headerPosition;
+    constructor(size?: number);
+    private ensure;
+    addInt32(num: number): Writer;
+    addInt16(num: number): Writer;
+    addCString(string: string): Writer;
+    addString(string?: string): Writer;
+    add(otherBuffer: Buffer): Writer;
+    private join;
+    flush(code?: number): Buffer;
+}