Fix Codacy static code analysis issues

- Make Program class static in test_multiline_quotes.cs
- Convert single quotes to double quotes in test_multiline_quotes.js
- Add eslint-disable comment for console statements in experiments

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: konard

experiments/test_multiline_quotes.cs

@@ -1,7 +1,7 @@
 using System;
 using Platform.Protocols.Lino;
 
-class Program
+static class Program
 {
     static void Main()
     {

experiments/test_multiline_quotes.js

@@ -1,8 +1,9 @@
-const { Parser } = require('../js/dist/index.js');
+/* eslint-disable no-console */
+const { Parser } = require("../js/dist/index.js");
 
 const parser = new Parser();
 
-console.log('Testing multiline quotes as described in issue #53:');
+console.log("Testing multiline quotes as described in issue #53:");
 console.log();
 
 const input = `(
@@ -15,15 +16,15 @@ long string literal
 as another reference'
 )`;
 
-console.log('Input:');
+console.log("Input:");
 console.log(input);
 console.log();
 
 try {
     const result = parser.parse(input);
-    console.log('✓ Parsing succeeded!');
+    console.log("✓ Parsing succeeded!");
     console.log(`Number of links: ${result.length}`);
-    console.log('Parsed result:', JSON.stringify(result, null, 2));
+    console.log("Parsed result:", JSON.stringify(result, null, 2));
 } catch (ex) {
     console.log(`✗ Parsing failed: ${ex.message}`);
     console.log(`Exception type: ${ex.constructor.name}`);