Add uziom generation script and update wet input documents

- Created a new Python script `uziom.py` for generating DXF drawings of grounding systems based on user input parameters.
- Added detailed documentation in `wet_input_15.docx` and `wet_input_3.docx` for the design of grounding systems, including calculations for resistance and resistivity measurements.
- Included placeholders for dynamic data insertion in the documents to facilitate project-specific customization.

pages/api/external.js

@@ -0,0 +1,56 @@
+import Cors from "cors";
+
+import fs from "fs";
+
+// Initializing the cors middleware
+// You can read more about the available options here: https://github.com/expressjs/cors#configuration-options
+const cors = Cors({
+	methods: ["POST"],
+});
+
+// Helper method to wait for a middleware to execute before continuing
+// And to throw an error when an error happens in a middleware
+function runMiddleware(req, res, fn) {
+	return new Promise((resolve, reject) => {
+		fn(req, res, (result) => {
+			if (result instanceof Error) {
+				return reject(result);
+			}
+
+			return resolve(result);
+		});
+	});
+}
+
+export default async function handler(req, res) {
+	// Run the middleware
+	await runMiddleware(req, res, cors);
+
+	const id = Math.floor(Math.random() * 90000) + 10000;
+	const textData = req.body;
+
+	let data = textData.split(",");
+
+	let text = "Próbkowanie: 1\nSegment 0: w dół\nX:	Y,	Z\n";
+	let i = 1;
+	for (let snippet of data) {
+		if (i % 3 != 0) {
+			text += snippet + ",";
+		} else {
+			text += snippet + "\n";
+		}
+		i += 1;
+	}
+
+	// console.log(text);
+
+	fs.writeFile(`externals/${id}.txt`, text, (err) => {
+		if (err) {
+			res.status(418);
+			throw err;
+		}
+	});
+
+	//	console.log(textData);
+	res.status(200).send({ url: `https://test.wastpol.pl/?external=tru&id=${id}` });
+}