vaev-webdriver: Intial implementation of webdriver2.

[sleepy-monax]

This rewrites the WebDriver in C++ to integrate it directly with the engine.
It now supports everything the previous implementations did. Plus PDF printing, retrieving the page source, and full session handling.

[Copilot]

Pull Request Overview

This PR implements a complete WebDriver 2 protocol implementation in C++ directly integrated with the Vaev engine, replacing the previous implementation. The new implementation adds support for PDF printing, page source retrieval, and full session handling.

• Adds new C++ WebDriver service with HTTP endpoints for the WebDriver 2 protocol
• Implements core WebDriver functionality including sessions, navigation, window management, and screen capture
• Adds HTML fragment serialization support for retrieving page source

Reviewed Changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 12 comments.

Show a summary per file

File	Description
src/vaev-webdriver/service.cpp	Implements HTTP service endpoints for WebDriver 2 protocol (sessions, navigation, contexts, screenshots, printing)
src/vaev-webdriver/protocol.cpp	Defines WebDriver protocol types and helper functions for success/error responses
src/vaev-webdriver/driver.cpp	Core WebDriver logic handling sessions, windows, navigation, and document operations
src/vaev-webdriver/mod.cpp	Module exports for the WebDriver implementation
src/vaev-webdriver/manifest.json	Component manifest declaring vaev-engine dependency
src/vaev-webdriver/main/manifest.json	Executable manifest for WebDriver server
src/vaev-webdriver/main/main.cpp	Entry point for WebDriver server with CLI option parsing
src/vaev-engine/style/specified.cpp	Changes opacity field from f16 to f32 for compatibility
src/vaev-engine/style/media.cpp	Adds viewportSize() helper method to Media struct
src/vaev-engine/dom/window.cpp	Adds refreshAsync() method and refactors viewport size usage
src/vaev-engine/dom/serialisation.cpp	Implements HTML fragment serialization per WHATWG spec
src/vaev-engine/dom/names.cpp	Adds documentation comment for namespace serialization logic
src/vaev-engine/dom/mod.cpp	Exports new serialisation module
src/vaev-engine/dom/element.cpp	Adds isVoidElement() method for HTML void element detection

[Louciole]

i let you fishish the TODO's but overall it looks good, I didn't see big loopholes, well done it's great !

[Copilot]

Pull Request Overview

Copilot reviewed 14 out of 15 changed files in this pull request and generated 17 comments.

[Louciole]

okay to me !