Add Emmy attach debugger support

[Yoctillion]

• Add attach debugger: inject emmy_hook.dll into running process by pid or name
• Add launch debugger: start executable with hook pre-loaded
• Extract EmmyDebugProcessBase from EmmyDebugProcess for shared protocol logic
• Fix prepareSandbox plugin directory prefix (was copying to wrong path)
• Fix EasyHook.dll missing from installDependencies (caused injection failure)
• Fix transport connecting to 127.0.0.1 instead of ::1
• Fix EmmyLuaAnalyzerAdaptor server path resolution

[CppCXY]

Have you referenced this project? https://github.com/EmmyLua/EmmyLua2-AttachDebugger

[Yoctillion]

This project depends on the old EmmyLua plugin and is not applicable to EmmyLua2. I referenced its implementation in this pull request.

[CppCXY]

This project depends on the old EmmyLua plugin and is not applicable to EmmyLua2. I referenced its implementation in this pull request.

https://github.com/EmmyLua/EmmyLua2-AttachDebugger/blob/c0faa197cafc8bc029d6622b07f8c48b5a8f0c19/build.gradle.kts#L70

Actually, it is just emmylua2's attach debugger, but I haven't updated it.

[CppCXY]

I support that it can be merged into the EmmyLua2 plugin, but some modifications are needed. First, we need to mark it as Windows only in a prominent place, and then you should show me the relevant UI and usage, and add documentation.

[Yoctillion]

OK, I will add these later

[Yoctillion]

The launch debugger doesn't seem to be working properly. I will fix it together, or remove it

[Yoctillion]

I've added os="windows" to all related extension points so the debugger is invisible on non-Windows platforms, and added documentation with a demo GIF in docs/attach-debugger.md.