ps1: embed real game art (ICON0 + PIC1) in converted EBOOTs

Fetch the game's cover art (libretro / ScreenScraper / IGDB / Wikipedia,
reusing the local cover cache) and bake it into the EBOOT's ICON0 (144x80
XMB icon) and PIC1 (480x272 launch background) instead of the default PS1
icon. Best-effort: falls back to the base icon/empty background when no art
is found. convert()/convert_to_folder() gain optional icon0/pic1 params.

app/transfers.py

@@ -237,12 +237,20 @@ class Ps1ConvertSource(Source):
             if progress_cb is not None and total:
                 progress_cb("Converting", min(done / total, 1.0), "")
 
-        from . import ps1_convert
+        from . import covers, ps1_convert
+
+        # Pull the game's real cover art (libretro / ScreenScraper / IGDB /
+        # Wikipedia) and bake it into ICON0 + PIC1 so the XMB shows the actual
+        # game, not the default PS1 icon. Best effort: fall back to defaults.
+        if progress_cb is not None:
+            progress_cb("Artwork", 0.0, "")
+        icon0, pic1 = covers.ps1_art(title, game_id)
 
         try:
             ps1_convert.convert_to_folder(
                 source, title, game_id, self.base_pbp, dest_dir,
                 progress_cb=cb, cancel_event=cancel_event,
+                icon0=icon0, pic1=pic1,
             )
         except ps1_convert.Cancelled:
             raise TransferCancelled() from None