Document the complete frontend navigation state machine:
- Main navigation loop at 0x4E6440 (CWinApp::Run, 19KB)
- g_CurrentScreen (0x6B3504) drives screen dispatch
- 20 dialog constructors mapped to screen IDs
- Bitmap font system: 4 font sizes, glyph renderer, textbox API
- Display wrapper at 0x79D6D4 with 6 backend variants
47 new Ghidra labels applied (functions, globals, dialog ctors).
38 new address.rs constants: dialog ctors, font system, display globals.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add frontend screen system: ScreenId enum and 21 named functions
Map the MFC CDialog-based menu system from 65 decompiled call sites.
Add ScreenId enum with 18 screen IDs (main menu through lobby).
Name 21 frontend/lobby functions and 4 global variables in Ghidra.
Add 25 new addresses to address.rs (14 frontend + 7 lobby + 4 globals).
Document screen transition architecture in frontend-screens.md.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
