What's new in v0.7.0-beta.1

This beta includes everything from Leaf v0.6.1, plus two major emulator upgrades,
safer dual-SD behavior, improved ROM uploads, and the Leaf-side foundation for
PortMaster 0.2.0.

Major emulator upgrades

PPSSPP now defaults to Vulkan

• Updated standalone PPSSPP to v1.20.4.
• Vulkan is now the normal MLP1 graphics path, using a Leaf-owned, pinned Mali
  G52 g29p1 runtime instead of depending on the optional PortMaster package.
• Added native Vulkan output and rotation for the MLP1's portrait-mounted panel.
• GLES remains available through a dedicated fallback launcher if a title or
  device needs it.
• Includes Balanced and Performance presets with durable user configuration.

Standalone Flycast is now the Dreamcast default

• Added a reproducible standalone Flycast v2.6 build for MLP1.
• Dreamcast games now use standalone Flycast by default; RetroArch Flycast
  remains available as a fallback.
• Integrated Leaf's calibrated virtual controller and detached silent physical
  SDL controller entries that could otherwise be selected incorrectly.
• The Menu button opens Flycast's native menu instead of immediately exiting,
  and that menu is correctly oriented on the MLP1 display.
• VMU data and user configuration persist across launches and updates.

Safer dual-SD libraries

• Games now use stable logical-card and source-relative identities instead of
  depending on whichever Linux mountpoint a card received during boot.
• Favorites, recents, playtime, per-game settings, artwork, and game IDs are
  preserved when a package moves between Primary and Secondary.
• Removing Secondary makes its games unavailable without deleting their library
  rows or user state; reinserting it restores the same entries.
• Primary and Secondary remain logically stable when /mnt/sdcard and
  /media/sdcard1 swap after a reboot.
• Runtime paths continue describing both configured card slots while consumers
  safely skip a configured card that is not actually mounted.

Central Scrutinizer improvements

• ROM uploads are validated against the platform catalog before large file data
  is transferred, preventing unsupported formats from appearing to succeed.
• Folder and ZIP bundles are checked as a whole, including entrypoints and
  companion files, instead of being judged independently in upload batches.
• The browser now shows each platform's supported formats and gives a clearer,
  platform-specific explanation when a selection is rejected.
• Configured but absent SD sources are skipped instead of traversing the stock
  firmware's empty mountpoint.
• Includes the Central Scrutinizer refresh and catalog fixes from Leaf v0.6.1.

PortMaster 0.2.0 and Pak Rat foundation

• Added the launcher's relocate-games-v1 reservation protocol and suspend
  inhibitor required for safe, restart-recoverable package moves.
• Pak Rat can retain immutable package history and select the newest package
  compatible with the installed Leaf release.
• Older Leaf devices remain on the released PortMaster 0.1.2 safe version until
  they install a compatible Leaf release.
• PortMaster remains an optional Pak Rat app and is not bundled in this Leaf
  image. This beta contains the Leaf side required by PortMaster 0.2.0.

Release and install safety

• Compatibility version 0.7.0 is recorded separately from build identity
  v0.7.0-beta.1.
• Release assembly records exact component commits and checks required launcher
  capabilities, configured-source paths, managed-app ownership, graphics-runtime
  promotion, and archive metadata before packaging.

Tester focus

• Launch several PSP games with Vulkan, confirm rotation and controls, then try
  the GLES fallback.
• Launch Dreamcast games, open and close Flycast's native menu, and confirm VMU
  saves persist.
• Test with both SD cards, then remove/reinsert Secondary and reboot until the
  physical mountpoints swap.
• Try supported and unsupported ROM uploads in Central Scrutinizer, including a
  folder or ZIP bundle.
• If you have a locally staged PortMaster 0.2.0 build, test installs and package
  moves in both directions.

Please include the exact tag v0.7.0-beta.1, whether one or two cards were
inserted, and the card chosen as Primary when reporting issues.