Port the start menu, the party menu and the pack outside battle

Start opens the original start menu. POKéMON shows the party with the
Pokémon submenu (stats, switching, move order, held items); PACK shows the
four pockets with the field item effects for healing, PP and the Bicycle,
plus giving and tossing. The menu runs on a script draft, and its cursors
persist until a battle clears them. Select keeps the Key Items shortcut.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -12,11 +12,11 @@ North of Cherrygrove, Route 30's trainers battle you. Bug Catcher Don spots you
 
 Mr. Pokémon gives you the Mystery Egg, and Professor Oak gives you the Pokédex. Your rival challenges you in Cherrygrove on the way back, and Elm's aide gives you Poké Balls. Back on Route 29, the Dude shows you how to catch Pokémon. From then on, open PACK in a wild battle to throw a Poké Ball. Caught Pokémon join your party, and you can give them a nickname. In battle, PKMN switches Pokémon or opens a Pokémon's stats, and when one faints you choose the next. PACK's Items pocket uses healing items, revives, Ethers, X items and Poké Dolls.
 
-Use Start or Select for Key Items, including the Bicycle when owned. The poster opens the Town Map.
+Start opens the start menu. POKéMON shows your party: open a Pokémon's stats, change the order, rearrange its moves, or give and take held items. PACK shows your pockets: use Potions, status healers, revives, Ethers and PP Ups, give or toss items, and ride the Bicycle. Select opens Key Items, including the Bicycle when owned. The poster opens the Town Map.
 
 The Pokémon Center PC opens Bill's PC, your own PC and, once you have the Pokédex, Professor Oak's rating. Deposit, withdraw and release Pokémon, and switch or name boxes. Store, withdraw or toss items. With six Pokémon in your party, a catch goes to the current box. When that box fills up, Bill calls you. The bedroom PC also lets you arrange owned decorations.
 
-Route 31 and beyond, full party and bag menus, moving Pokémon between boxes, Kurt's special balls and audio are still being ported. Unported neighboring areas appear at the edges but cannot be entered yet.
+Route 31 and beyond, evolution, the Pokégear, Pokédex and trainer card screens, field moves from the menu, MAIL, moving Pokémon between boxes, Kurt's special balls and audio are still being ported. Unported neighboring areas appear at the edges but cannot be entered yet.
 
 ## Run