ChromaMatter Source-backed App Alpha

Source commit: 34e7ebdc3ec7dae6ad831b5119d574a656b105b0
Displayed product version: 0.8beta
Supported test host: Apple Silicon / macOS 15 or newer

This Finder-launchable .app is a convenience wrapper around
START_MACOS_SOURCE_ALPHA.command. It is NOT the frozen prebuilt ChromaMatter
application and it contains no Python runtime, virtual environment, wheel,
third-party native library, or packaged Mach-O executable.

On first launch the app opens Terminal. The source launcher may download the
verified official Python 3.13.14 installer and exact hash-locked dependencies,
install them into the current user's Application Support directory, run the
native/render self-test, and then start ChromaMatter from source. Keep Terminal
open while setup is running.

This route does not bypass Gatekeeper and does not satisfy, weaken, or replace
the separate 153-file prebuilt-app source/build/relink approval gate. The app
is not Developer ID signed or Apple-notarized. Use only the documented Finder
Open / Privacy & Security approval flow; never disable macOS security globally.
