MMX v1.0.3

MMX v1.0.3 is a hotfix for the v1.0.2 player packages.

Widescreen HUD fix

• Restored the MMX6 HUD packet range to the player-facing game.toml, so the
  health and ability meters anchor to the true widescreen corners.
• Restored the reveal initializer and intro-stage culling hooks that had also
  drifted out of the release config.
• Added a release-packaging parity check. Windows and Linux packaging now fail
  if the complete [widescreen] section differs from the development config.

The development config already contained these settings, which is why local
builds worked while the downloadable v1.0.2 packages did not.

Carried forward from v1.0.2

• Windows and Linux x86_64 packages with prebuilt native overlay shards.
• Experimental Linux AppImage support.
• MIT-licensed OpenBIOS bundled and selected by default.
• The full acediez Tweaks catalog, including DuoDynamo's approved English
  retranslation, plus the framework-owned loading-speed mods.

All enhancements remain opt-in. Saves, memory cards, settings, and the player's
original disc image remain compatible with v1.0.2.