Additional methods required by ProviderResultDisplay interface

Implement the required interface methods

ParseHeaders takes a string containing HTTP headers and parses it into an http.Header map. It expects headers in the format "Key: Value\n", one per li

SanitizeURLPrefix removes "http://" or "https://://" from the beginning of a string.

formatHeaderComparisonTable creates a side-by-side string for header differences.

getEC2SshClient establishes or returns an existing SSH client for the EC2 instance.

getSshClient establishes or returns an existing SSH client for the secondary SSH instance.

init is run before main to set up configuration and flags.

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