feat: Docker Hub image, cloaktest CLI, and example UX improvements

Add cloakhq/cloakbrowser Docker Hub image with Node.js, JS wrapper,
Xvfb headed mode, and cloaktest shortcut. Add launch feedback and IP
display to all examples. Update README Docker section for Docker Hub.

README.md

@@ -5,10 +5,10 @@
 <p align="center">
 <a href="https://pypi.org/project/cloakbrowser/"><img src="https://img.shields.io/pypi/v/cloakbrowser" alt="PyPI"></a>
 <a href="https://www.npmjs.com/package/cloakbrowser"><img src="https://img.shields.io/npm/v/cloakbrowser" alt="npm"></a>
-<a href="LICENSE"><img src="https://img.shields.io/github/license/CloakHQ/CloakBrowser" alt="License"></a>
-<a href="https://github.com/CloakHQ/CloakBrowser"><img src="https://img.shields.io/github/last-commit/CloakHQ/CloakBrowser" alt="Last Commit"></a>
+<a href="LICENSE"><img src="https://img.shields.io/github/license/cloakhq/cloakbrowser?v=1" alt="License"></a>
+<a href="https://github.com/CloakHQ/CloakBrowser"><img src="https://img.shields.io/github/last-commit/cloakhq/cloakbrowser" alt="Last Commit"></a>
 <br>
-<a href="https://github.com/CloakHQ/CloakBrowser"><img src="https://img.shields.io/github/stars/CloakHQ/CloakBrowser" alt="Stars"></a>
+<a href="https://github.com/CloakHQ/CloakBrowser"><img src="https://img.shields.io/github/stars/cloakhq/cloakbrowser" alt="Stars"></a>
 <a href="https://pepy.tech/projects/cloakbrowser"><img src="https://img.shields.io/pepy/dt/cloakbrowser?label=pypi&logo=pypi&logoColor=white" alt="PyPI Downloads"></a>
 <a href="https://www.npmjs.com/package/cloakbrowser"><img src="https://img.shields.io/npm/dt/cloakbrowser?label=npm&logo=npm&logoColor=white" alt="npm Downloads"></a>
 </p>
@@ -42,6 +42,11 @@ Same API, same code — just swap the import. <strong>3 lines of code, 30 second
 - **`pip install cloakbrowser`** or **`npm install cloakbrowser`** — binary auto-downloads, zero config
 - **Free and open source** — no subscriptions, no usage limits
 
+**Try it now** — no install needed:
+```bash
+docker run --rm cloakhq/cloakbrowser cloaktest
+```
+
 **Python:**
 ```python
 from cloakbrowser import launch
@@ -413,9 +418,6 @@ The binary detects its platform at compile time — a macOS binary reports as ma
 > const browser = await launch({ args: ['--fingerprint=12345'] });
 > ```
 
-<details>
-<summary><strong>Default Fingerprint & All Flags</strong> (click to expand)</summary>
-
 ### Default Fingerprint
 
 Every `launch()` call sets these automatically. The **wrapper** applies platform-aware defaults — on Linux it spoofs as Windows for a more common fingerprint, on macOS it runs as a native Mac browser:
@@ -475,8 +477,6 @@ browser = launch(args=[
 ])
 ```
 
-</details>
-
 ## Examples
 
 **Python** — see [`examples/`](examples/):
@@ -506,30 +506,24 @@ The wrapper auto-downloads the correct binary for your platform.
 
 ## Docker
 
-A ready-to-use [`Dockerfile`](Dockerfile) is included. It installs system deps, the package, and pre-downloads the stealth binary during build:
+Pre-built image on Docker Hub — no install, no setup:
 
 ```bash
-docker build -t cloakbrowser .
-docker run --rm cloakbrowser python examples/basic.py
-```
+# Run the stealth test suite
+docker run --rm cloakhq/cloakbrowser cloaktest
 
-The key steps in the Dockerfile:
-1. **System deps** — Chromium requires ~15 shared libraries (`libnss3`, `libgbm1`, etc.)
-2. **`pip install .`** — installs CloakBrowser + Playwright
-3. **`ensure_binary()`** — downloads the stealth Chromium binary at build time (~200MB), so containers start instantly
+# Run your own script
+docker run --rm cloakhq/cloakbrowser python -c "
+from cloakbrowser import launch
+browser = launch()
+page = browser.new_page()
+page.goto('https://example.com')
+print(page.title())
+browser.close()
+"
 
-To extend with your own script, just add a `COPY` + `CMD`:
-
-```dockerfile
-FROM cloakbrowser
-COPY your_script.py /app/
-CMD ["python", "your_script.py"]
-```
-
-**With a proxy** (the most common production setup):
-
-```bash
-docker run --rm cloakbrowser python -c "
+# With a proxy
+docker run --rm cloakhq/cloakbrowser python -c "
 from cloakbrowser import launch
 browser = launch(proxy='http://user:pass@proxy:8080')
 page = browser.new_page()
@@ -539,6 +533,20 @@ browser.close()
 "
 ```
 
+To extend with your own script:
+
+```dockerfile
+FROM cloakhq/cloakbrowser
+COPY your_script.py /app/
+CMD ["python", "your_script.py"]
+```
+
+**Building from source** — a [`Dockerfile`](Dockerfile) is also included if you prefer to build your own image:
+
+```bash
+docker build -t cloakbrowser .
+```
+
 CloakBrowser works identically local, in Docker, and on VPS. No environment-specific config needed.
 
 **Note:** If you run CloakBrowser inside a web server with uvloop (e.g., `uvicorn[standard]`), use `--loop asyncio` to avoid subprocess pipe hangs.
@@ -584,11 +592,12 @@ const browser = await launch({ args: ['--disable-http2'] });
 
 Only use this flag for sites that require it — most sites work fine with HTTP/2.
 
-**Something not working? Make sure you're on the latest wrapper**
+**Something not working? Make sure you're on the latest version**
 Older versions may use outdated stealth args or download an older binary:
 ```bash
 pip install -U cloakbrowser    # Python
 npm install cloakbrowser@latest # JavaScript
+docker pull cloakhq/cloakbrowser:latest  # Docker
 ```
 
 **Binary download fails / timeout**