Fix script.txt format to match SpringBoard's expectations

Corrections based on SpringBoard code analysis:

1. MapName: Use 'sb_initial_blank_10x8' (no version suffix)
   - SpringBoard generates random names like 'blank_123456project 1.0'
   - For testing, a simple name without version works

2. Map generation params: Use [MAPOPTIONS] not [MODOPTIONS]
   - SpringBoard reads new_map_x/y via Spring.GetMapOptions()
   - This corresponds to [MAPOPTIONS] section in script.txt

3. MapSeed: Removed from script.txt
   - SpringBoard hardcodes mapSeed=42 internally (project.lua:155)
   - Comment says: 'FIXME: Not the real mapseed but probably not an issue'
   - No need to specify it in script

References:
- scen_edit/model/project.lua:149-157 (_LoadFromMapOpts)
- scen_edit/view/dialog/new_project_dialog.lua:115-120
- scen_edit/command/project/save_project_info_command.lua:109-126

This matches how SpringBoard's NewProjectDialog creates generated maps.

Author: claude

test-smoke.sh

@@ -60,9 +60,8 @@ cat > script.txt << 'EOF'
   MapName=sb_initial_blank_10x8;
   IsHost=1;
   MyPlayerName=TestPlayer;
-  [MODOPTIONS]
+  [MAPOPTIONS]
   {
-    MapSeed=42;
     new_map_x=10;
     new_map_y=8;
   }