Fix broken Selenium example, cdp_url comments, and add complete SDK examples

- Selenium example used ws:// string replacements that are no-ops since
  cdp_url returns https:// format. Selenium's debugger_address only supports
  local host:port. Replaced with Playwright sync bridge + note.
- Fixed cdp_url comment from "# ws://..." to actual https:// format.
- Added complete Playwright connection examples under Option 2 (SDK) for
  both Python and TypeScript — previously only showed browsers.create()
  without connecting.
- Added Puppeteer example under Option 2 showing the /json/version
  pattern needed to get the webSocketDebuggerUrl.
- All examples verified working with live integration tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: MagMueller

docs/cloud/browser/playwright-puppeteer-selenium.mdx

@@ -90,13 +90,15 @@ with sync_playwright() as p:
 
 Create a browser via the SDK, get a `cdp_url`, and connect with Playwright or Puppeteer.
 
+### Playwright
+
 <CodeGroup>
 ```python Python
 from browser_use_sdk.v3 import AsyncBrowserUse
 from playwright.async_api import async_playwright
 
 client = AsyncBrowserUse()
-browser = await client.browsers.create(proxy_country_code="us")
+browser = await client.browsers.create()
 print(browser.cdp_url)   # https://uuid.cdpN.browser-use.com
 print(browser.live_url)  # https://live.browser-use.com?wss=...
 
@@ -114,7 +116,7 @@ import { BrowserUse } from "browser-use-sdk/v3";
 import { chromium } from "playwright";
 
 const client = new BrowserUse();
-const browser = await client.browsers.create({ proxyCountryCode: "us" });
+const browser = await client.browsers.create();
 console.log(browser.cdpUrl);  // https://uuid.cdpN.browser-use.com
 console.log(browser.liveUrl); // https://live.browser-use.com?wss=...
 
@@ -128,6 +130,28 @@ await client.browsers.stop(browser.id);
 ```
 </CodeGroup>
 
+### Puppeteer
+
+```typescript
+import { BrowserUse } from "browser-use-sdk/v3";
+import puppeteer from "puppeteer-core";
+
+const client = new BrowserUse();
+const browser = await client.browsers.create();
+
+// Puppeteer needs the WebSocket URL from /json/version
+const resp = await fetch(`${browser.cdpUrl}/json/version`);
+const { webSocketDebuggerUrl } = await resp.json();
+
+const pwBrowser = await puppeteer.connect({ browserWSEndpoint: webSocketDebuggerUrl });
+const [page] = await pwBrowser.pages();
+await page.goto("https://example.com");
+console.log(await page.title());
+await pwBrowser.close();
+
+await client.browsers.stop(browser.id);
+```
+
 <Warning>
   Always stop browser sessions when done. Sessions left running will continue to incur charges until the timeout expires.
 </Warning>