feat: upgrade to Chromium v145 with Patchright CDP stealth

- Migrate from Playwright to Patchright driver for CDP leak prevention
- Add screen dimension spoofing args (--fingerprint-screen-width/height, --fingerprint-taskbar-height)
- Add realistic default viewport (1920x955) to avoid Playwright detection
- Add color_scheme param to launch_context, add fingerprint scan test
- Update READMEs for v145

js/src/config.ts

@@ -139,6 +139,11 @@ export function getLocalBinaryOverride(): string | undefined {
 // ---------------------------------------------------------------------------
 // Default stealth arguments
 // ---------------------------------------------------------------------------
+// Default viewport — realistic maximized Chrome on 1080p Windows
+// screen=1920x1080, availHeight=1040 (minus 40px taskbar),
+// innerHeight=955 (minus ~85px Chrome UI: tabs + address bar + bookmarks)
+export const DEFAULT_VIEWPORT = { width: 1920, height: 955 };
+
 export function getDefaultStealthArgs(): string[] {
   const seed = Math.floor(Math.random() * 90000) + 10000; // 10000-99999
   const isMac = process.platform === "darwin";
@@ -161,5 +166,9 @@ export function getDefaultStealthArgs(): string[] {
     "--fingerprint-hardware-concurrency=8",
     "--fingerprint-gpu-vendor=NVIDIA Corporation",
     "--fingerprint-gpu-renderer=NVIDIA GeForce RTX 3070",
+    "--fingerprint-taskbar-height=40",
+    "--fingerprint-screen-width=1920",
+    "--fingerprint-screen-height=1080",
+    "--window-size=1920,1080",
   ];
 }

js/src/playwright.ts

@@ -5,7 +5,7 @@
 
 import type { Browser, BrowserContext } from "playwright-core";
 import type { LaunchOptions, LaunchContextOptions } from "./types.js";
-import { getDefaultStealthArgs } from "./config.js";
+import { DEFAULT_VIEWPORT, getDefaultStealthArgs } from "./config.js";
 import { ensureBinary } from "./download.js";
 import { parseProxyUrl } from "./proxy.js";
 
@@ -68,7 +68,7 @@ export async function launchContext(
   try {
     context = await browser.newContext({
       ...(options.userAgent ? { userAgent: options.userAgent } : {}),
-      ...(options.viewport ? { viewport: options.viewport } : {}),
+      viewport: options.viewport ?? DEFAULT_VIEWPORT,
       ...(resolved.locale ? { locale: resolved.locale } : {}),
       ...(resolved.timezone ? { timezoneId: resolved.timezone } : {}),
     });