V446 — Save Game, Account Save Folders, UI Interface Editor (Frozen Release)

Base: V445. The original V445 archive is not modified.

- The in-game Options menu has a visible Save Game control for every account window.
  This opens BG2's native Save Game screen. The game engine may still restrict
  multiplayer clients; full save functionality must be verified in BG2 itself.
- Keeps the existing no-manual-pause behavior.
- Each verified BaldurII_<accountname>.exe continues to use:
    save_<accountname>
    mpsave_<accountname>
    mpbsave_<accountname>
  Uses the exact account name, up to 11 characters. No shared folder swapping.
- Resume Campaign and the native Load Game behavior are unchanged.
- UI Interface Editor's IN-GAME ACCOUNTS / SETUP tab calls the same V446
  installer as SETUP_IN_GAME_ACCOUNTS.bat and checks the visible Save Game marker.
- All packaged files have a read-only flag and a SHA-256 manifest.
  The installer will also freeze All Editors sources after a successful run.
  READ_ONLY_SOURCE_SHA256.txt covers all packaged source files except itself.
- BG2 runtime data (save folders, account registration, profile .lua files)
  is not frozen: the game must be able to write it.

Installation: close all BG2 windows, extract the entire ZIP, and run
SETUP_IN_GAME_ACCOUNTS.bat, or the V446 installer in UI Interface Editor.

To verify the files: CHECK_FROZEN_FILES.bat.
Windows read-only flags discourage accidental edits but do not provide
cryptographic protection against intentional modification; use the manifest
for integrity checks. Preserve your separate V444/V445 backups.
