fix(apps,config,launch): register EABackgroundService, -EpicPortal launch arg

Root causes (confirmed via Wine services.c + MS SC_FAILURE_ACTIONS docs):
- Wine's SCM has no FailureActions restart logic; marked SERVICE_STOPPED
  on exit only — our FailureActions=zeros was correct but irrelevant
- Services use hidden __wineservice_winstation\Default desktop; invisible
  windows are expected behaviour
- Epic: launches in tray-only/background mode without -EpicPortal; UI
  never opens
- EA: msiextract skips the service-registration custom action; EADesktop.exe
  calls StartService("EABackgroundService"), gets ERROR_SERVICE_DOES_NOT_EXIST,
  falls back to repair/bootstrapper mode

Fixes:
- config.sh: add APP_LAUNCH_ARGS associative array; epic-games gets -EpicPortal
- launch.sh: launch_app appends APP_LAUNCH_ARGS[$app_key] after the exe binary
- apps.sh: ea-desktop post-install regedit /s now registers EABackgroundService
  (Type=0x10 WIN32_OWN_PROCESS, Start=0x3 DEMAND_START, ImagePath with -start
  flag, ObjectName=LocalSystem) so StartService() succeeds from EADesktop.exe

Author: xaoscience

lib/apps.sh

@@ -131,18 +131,24 @@ install_app() {
             ea-desktop)
                 # DEMAND_START + no restart; also create install registry key that EADesktop.exe
                 # checks on startup — if absent it falls back to bootstrapper/repair mode.
+                # Register EABackgroundService so StartService() succeeds — msiextract skips this CA.
                 local _ea_ver
                 _ea_ver=$(basename "${installer_path:-}" | grep -oP '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -1)
                 _ea_ver="${_ea_ver:-13.759.0.0}"
                 printf 'Windows Registry Editor Version 5.00\n\n'\
-'[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Services\\EABackgroundService]\n'\
-'"Start"=dword:00000003\n'\
-'"FailureActions"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00\n\n'\
 '[HKEY_LOCAL_MACHINE\\SOFTWARE\\Electronic Arts\\EA Desktop]\n'\
 '"InstallDir"="C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\"\n'\
 '"Version"="'"$_ea_ver"'"\n\n'\
 '[HKEY_LOCAL_MACHINE\\SOFTWARE\\Electronic Arts\\EA Desktop\\Install]\n'\
-'"InstallDir"="C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\"\n' \
+'"InstallDir"="C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\"\n\n'\
+'[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Services\\EABackgroundService]\n'\
+'"Type"=dword:00000010\n'\
+'"Start"=dword:00000003\n'\
+'"ErrorControl"=dword:00000001\n'\
+'"ImagePath"="\\"C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\EABackgroundService.exe\\" -start"\n'\
+'"DisplayName"="EABackgroundService"\n'\
+'"ObjectName"="LocalSystem"\n'\
+'"FailureActions"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00\n' \
                     > "$_svc_reg"
                 "$PROTON_DIR/proton" run regedit /s \
                     "C:\\windows\\temp\\disable-bg-svc.reg" >/dev/null 2>&1 || true

lib/config.sh

@@ -16,6 +16,11 @@ export WINEPREFIX WINEARCH=win64
 DXVK_CONFIG_FILE="$WINE_DIR/dxvk.conf"
 export DXVK_CONFIG_FILE
 
+# Per-app launch arguments appended after the exe (e.g. force UI open)
+declare -A APP_LAUNCH_ARGS=(
+    [epic-games]="-EpicPortal"
+)
+
 # Ensure necessary directories exist
 mkdir -p "$WINE_DIR" "$BACKUP_DIR" "$CACHE_DIR" "$BIN_DIR" "$APPS_DIR" 2>/dev/null || true
 

lib/launch.sh

@@ -66,7 +66,9 @@ launch_app() {
         mkdir -p "$WINEPREFIX"
 
         cd "$exe_dir"
-        eval "${WG_LAUNCH_PREFIX}\"\$PROTON_DIR/proton\" run \"\$exe_bin\"" >"$WINE_DIR/${app_key}.log" 2>&1 &
+        # APP_LAUNCH_ARGS provides per-app arguments (e.g. -EpicPortal forces EGL store window).
+        local _args="${APP_LAUNCH_ARGS[$app_key]:-}"
+        eval "${WG_LAUNCH_PREFIX}\"\$PROTON_DIR/proton\" run \"\$exe_bin\" ${_args}" >"$WINE_DIR/${app_key}.log" 2>&1 &
     else
         print_warning "Proton not available, using Wine fallback"
         export WINEDEBUG="${WINEDEBUG:--all}"