Enhanced extension installation documentation across docs, examples, and the generated install guide. Added Windows, macOS, and Linux-specific paths to help users find the correct installation directory. The dynamic README now shows the machine's actual extensions directory and typical OS paths. Also includes a minor fix removing wide string literal prefix from a path string.
Adds an extension manager that loads unpacked extensions from the user data extensions directory, persists enabled state, and injects matching content scripts on page load. The settings Plugins page now shows installed extensions, supports reload/toggle actions, and includes an example Hello Nebula extension.
andrew
Andrew Zambazos