Characters: Laden in the Esc menu, timed autosave

- Esc menu: "Exportieren" became "Laden"; it opens the load window, always
  in load mode. In a game every world loads (the current one reloads); a
  "(neu)" world stops the game (cCommand_armaStop) and starts the new one
  without the main menu. The character being played cannot be deleted.
- Silent autosave every sacredK.ini [characters] AutosaveMinutes (default
  10, 0 = off) into the character's autosave file.

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

docs/todo.md

@@ -184,14 +184,22 @@ From the characters rework (`docs/characters.md`, request of 2026-10-19):
   are one byte per difficulty in cStatsManager +0x5704 (read 0x424be0) and
   travel in the save header (+0x88..+0x98) and the hero file. Done
   2026-10-20 (docs/characters.md).
-- **Silent autosave every 10 minutes** (a setting later) into the
-  autosave file, without the busy dialog, like the direct save
-  (`SaveOnTick`) but marked as an autosave.
+- **Autosave interval in the options window** (now only
+  `sacredK.ini` `[characters] AutosaveMinutes`).
 - **Quickload (row 0) does not know characters.** Ctrl+Z saves into the
   current character, but the quickload event (0x116, engine +0x68 = row,
   flag 0x200) loads `GAME00.PAK`, which is not listed; make it reload the
   current character's world (or its newer autosave).
 
+## Two saves in a row (2026-10-20, not reproduced)
+
+Once two real saves ("saved", not "autosaved") went into the same character
+1.8 s apart, about 77 s after loading, with the timed autosave off. Save
+flag 0x40 is set in cEngine::ReceiveEvent at 0x618876 (quicksave),
+0x618f08 and 0x6190c5 (save event 0xf: +0xc row, +0x18 autosave flag). A
+log of the event that sets the flag (dwords 0..9) did not catch it again;
+add it back if it shows.
+
 ## Savegames screen redesign ("Spielen")
 
 Asked 2026-10-20: redesign the load window (cUI_Savegame, the "Spielen"