Use internal SkyHook event types with union-backed key fields

[2228293026]

Motivation

• Make the local SkyHook compatibility layer match the game’s internal SkyHook layout and types to improve interoperability and avoid duplicating enum definitions.
• Use a union-backed field for Label/Key so the managed event exactly maps to the in-game structure and can be enqueued/consumed without extra translations.
• Keep the existing Win32 INPUT definitions so the non-SkyHook SendInput path remains unaffected.

Description

• Replaced the previous local SkyHook enums/struct with SkyHookEvent using LayoutKind.Explicit and a shared field at the same offset for global::SkyHook.KeyLabel Label and ushort Key to act as a union. (edited Macro/SkyHookSystem.cs)
• Switched the Type field to use global::SkyHook.EventType and adjusted Create / GetTimeInTicks / time conversion to the game-aligned format, removing the previous local mapping logic. (edited Macro/SkyHookSystem.cs)
• Preserved the Win32 INPUT / InputUnion / KEYBDINPUT / mouse/hardware structs in the compatibility file so SendInput path still works. (edited Macro/SkyHookSystem.cs)
• Updated AsyncInputManager to compare event types against global::SkyHook.EventType.KeyPressed where the local EventType was previously used. (edited Macro/AsyncInputManager.cs)
• Committed changes with message: "Use game SkyHook types and union-backed event fields".

Testing

• Ran repository file inspections and diffs to validate edits and ensure references were updated; these checks succeeded locally.
• Attempted to build the solution with dotnet build BaseMacro.slnx -c Release and msbuild BaseMacro.csproj /t:Build /p:Configuration=Release, but both commands failed because dotnet/msbuild are not available in this environment, so compilation could not be verified.
• Performed git operations to add and commit the two modified files and confirmed the commit was created successfully.

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Codex Task