ps1: official-style ICON0/PIC0/PIC1 artwork with PSN templates

Replaces the letterboxed 144x80 icon + cropped PIC1 with official-looking
PS1 Classics art:
- ICON0 (80x80): cover art composited into the bundled case frame (PS logo
  + 'PlayStation.' wordmark) from data/ps1_templates/ICON0.PNG.
- PIC0 (310x180): a PSN-style info board drawn in code — title, IGDB
  description, ESRB badge (from IGDB age_ratings) and PS3/PSP badges.
- PIC1 (480x272): the bundled launch background template.

The converter now embeds PIC0, the PS1 tab previews all three images, and
ps1_art pulls IGDB description/ESRB as best effort. Templates are git-ignored
(user-supplied, like base.PBP) with a drawn-art fallback when missing.

app/transfers.py

@@ -240,17 +240,17 @@ class Ps1ConvertSource(Source):
         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.
+        # Wikipedia) and bake it into ICON0 + PIC0 + PIC1 so the XMB shows the
+        # official-style art, not the default PS1 icon. Best effort.
         if progress_cb is not None:
             progress_cb("Artwork", 0.0, "")
-        icon0, pic1 = covers.ps1_art(title, game_id)
+        icon0, pic0, 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,
+                icon0=icon0, pic0=pic0, pic1=pic1,
             )
         except ps1_convert.Cancelled:
             raise TransferCancelled() from None