Add product variants API, deployment scripts, and documentation

- Add Node.js variant-api server with PostgreSQL integration
- Add new utility scripts for system verification and website status
- Update CI/CD workflow configuration
- Add color variant solution documentation
- Add product variants JavaScript support
- Update gitignore for new build artifacts

variant-api/server.js

@@ -0,0 +1,73 @@
+#!/usr/bin/env node
+const http = require("http");
+const { Client } = require("pg");
+
+const PORT = 5001;
+
+const client = new Client({
+  host: "localhost",
+  port: 5432,
+  database: "skyartshop",
+  user: "skyartapp",
+  password: "SkyArt2025Pass!"
+});
+
+client.connect().catch(err => {
+  console.error("Database connection error:", err);
+  process.exit(1);
+});
+
+const server = http.createServer(async (req, res) => {
+  res.setHeader("Access-Control-Allow-Origin", "*");
+  res.setHeader("Access-Control-Allow-Methods", "GET, OPTIONS");
+  res.setHeader("Access-Control-Allow-Headers", "Content-Type");
+  res.setHeader("Content-Type", "application/json");
+
+  if (req.method === "OPTIONS") {
+    res.writeHead(200);
+    res.end();
+    return;
+  }
+
+  const match = req.url.match(/^\/api\/variants\/([a-f0-9-]+)$/i);
+  
+  if (!match) {
+    res.writeHead(404);
+    res.end(JSON.stringify({ error: "Not found" }));
+    return;
+  }
+
+  const productId = match[1];
+
+  try {
+    const result = await client.query(
+      "SELECT variants FROM products WHERE id = $1",
+      [productId]
+    );
+
+    if (result.rows.length === 0) {
+      res.writeHead(404);
+      res.end(JSON.stringify({ error: "Product not found" }));
+      return;
+    }
+
+    const variants = result.rows[0].variants || [];
+    res.writeHead(200);
+    res.end(JSON.stringify(variants));
+  } catch (error) {
+    console.error("Query error:", error);
+    res.writeHead(500);
+    res.end(JSON.stringify({ error: "Internal server error" }));
+  }
+});
+
+server.listen(PORT, "127.0.0.1", () => {
+  console.log(`Variant API running on http://127.0.0.1:${PORT}`);
+});
+
+process.on("SIGTERM", () => {
+  server.close(() => {
+    client.end();
+    process.exit(0);
+  });
+});