[Feature Request]: Export & Import all cookies from session

[mchudie]

Describe the feature / enhancement and how it would improve things

Currently getCookiesFromSession(url) only returns cookies that would be sent for a given URL.
This means there is no way to retrieve the entire cookie jar of a session.

Many real-world use cases require exporting and re-importing all cookies:

• Backing up and restoring login sessions
• Migrating cookies between different sessions or environments
• Debugging HTTP flows
• Persisting authentication state across runs

Adding an API to export and import the full set of cookies would make the library more flexible and closer to browser-like behavior.

Describe how your proposal will work, with code and/or pseudo-code

// Example new API functions:

// Export all cookies from a session
// Input: {"sessionId":""}
// Output: {"id":"", "cookies":[ ... ]}
extern char* getAllCookiesFromSession(const char* params);

// Import cookies into a session
// Input: {"sessionId":"", "cookies":[ ... ]}
// Output: success/error
extern char* setCookiesToSession(const char* params);

// The cookie format can reuse the same structure as transformCookies()
// that is already returned by getCookiesFromSession(url).