Map: zoomed-view symbols centred, 10x reveal and enemy range; progress screen on the menu background

- Megamap / TAB map zoomed view: heroes' markers and the other symbols
  (integer 200h centre immediates) follow the view's centre.
- Map reveal: the hero's reveal stamp scaled 10x (mods/mapreveal.cpp,
  docs/map-reveal.md); creatures on the zoomed map shown within 10x the
  sight range.
- Load / save progress screen drawn on the rock background across the full
  width, the picture blended over it (mods/loadingscreen.cpp); the classic
  1024x768 frame is gone.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tools/names.txt

@@ -372,3 +372,11 @@
 0x0075e620 MenuScene::Render               # (1 argument), ret 4: sky + water (UI_UW_MAIN_CENTER, UI_MAIN_REF)
 0x0075e820 MenuScene::Update               # (seconds)
 0x005905f0 VerifyHeroMirror                # anti-cheat: local hero vs protected mirror (0x182cddc); resets mismatches, returns 1 if all matched (mods/anticheat.cpp)
+
+# --- explored map (fog of war, 2026-10-25) -------------------------------------
+0x00599730 RevealAroundHero                  # creature thiscall (tile x, y, sight 0..3), ret 0xc; stamps 0x88f5cc / 0x88f328 when the hero's tile changed
+0x00638f00 World_SetExplored                 # thiscall (tile x, y, explored), ret 0xc; ecx *0xad14e0
+0x00622bf0 Sector_SetExplored                # thiscall (tile x, y, explored), ret 0xc; bit in the 32x32 mask +0x180
+0x00622c60 Sector_GetExploredMask            # (out 128 bytes), ret 4
+0x00622c80 Sector_SetExploredMask            # (128 bytes), ret 4; from the save (0x606ae0)
+0x00639030 Sector_BuildFogTexture            # FOGOFWAR01.TGA from a mask, for the zoomed map view