v0.1.0-alpha.2 — One-click ComfyUI runtime setup

Installation UX update.\n\n- Adds a DLSS Runtime Setup node usable entirely inside ComfyUI\n- User only supplies nvngx_dlssnr.dll\n- Downloads the pinned VapourKit Windows nightly automatically\n- Verifies the published SHA-256 before extraction\n- Locates runtime components and writes local configuration automatically\n- Keeps PowerShell/Python installers as optional headless fallbacks\n- Passes all Comfy Registry validation and security checks\n\nNo proprietary NVIDIA runtime is downloaded or distributed.