Verified fingerprint overrides

Test changes with FingerprintJS and BrowserLeaks.

• OS: Override the OS segment in userAgent
• Browser version: Override the browser version in userAgent
• Proxy: Default, no proxy, or custom per profile
• User-Agent: Full userAgent string
• Language: navigator.language / navigator.languages; optional auto-match from IP
• Timezone: Date timezone; optional auto-match from IP
• WebRTC
• Geolocation: navigator.geolocation.getCurrentPosition() lat/long; optional IP match
• Resolution: screen.width / screen.height
• Fonts: Randomize from supported font lists
• Canvas: Perturb Canvas 2D pixels
• WebGL image: Perturb WebGL draw pixels
• WebGL metadata: Vendor, renderer, etc.
• WebGPU: Vendor and architecture (linked to WebGL metadata)
• AudioContext: Perturb getChannelData / getFloatFrequencyData
• ClientRects
• Speech Voices
• CPU: navigator.hardwareConcurrency
• Memory
• Device name
• MAC address
• Do Not Track
• SSL
• Port scan protection
• Hardware acceleration