fix(org-chart): improve auto connector contrast and test portability

examples/org-chart/verify.mjs

@@ -1,3 +1,4 @@
+import { loadPlaywright, launchChromium } from '../../scripts/orgchart-browser-runtime.mjs';
 import assert from 'node:assert/strict';
 import http from 'node:http';
 import { readFile, mkdir, writeFile } from 'node:fs/promises';
@@ -5,8 +6,7 @@ import { fileURLToPath, pathToFileURL } from 'node:url';
 import path from 'node:path';
 
 // Browser tooling belongs to the verification environment, not the production package.
-const playwright = process.env.ORGCHART_PLAYWRIGHT_MODULE;
-const { chromium } = await import(playwright ? pathToFileURL(playwright).href : 'playwright');
+await loadPlaywright();
 const example = fileURLToPath(new URL('./dist/', import.meta.url));
 const output = fileURLToPath(new URL('../../test-results/org-chart-browser/', import.meta.url));
 await mkdir(output, { recursive: true });
@@ -24,7 +24,7 @@ const server = http.createServer(async (request, response) => {
 });
 await new Promise(resolve => server.listen(0, '127.0.0.1', resolve));
 const origin = `http://127.0.0.1:${server.address().port}`;
-const browser = await chromium.launch({ executablePath: process.env.ORGCHART_CHROME || 'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe', headless: true });
+const browser = await launchChromium({ headless: true });
 const results = [], errors = [], metrics = [];
 const check = (condition, name, detail) => { results.push({ name, status: condition ? 'PASS' : 'FAIL', detail }); assert.ok(condition, `${name}: ${JSON.stringify(detail)}`); };
 try {