Port capture and the Route 29 catching tutorial

Battle PACK opens the Balls pocket and runs PokeBallEffect: the Poké,
Great, Ultra and Master Ball multipliers, the original HP arithmetic
(including the overflow above 341 maximum HP), the sleep/freeze bonus
(BRN/PSN/PAR add nothing), HELD_CATCH_CHANCE and the catch draw.
GetPokeBallWobble draws per shake from WobbleProbabilities and picks the
break-free text. Trainer battles block the ball but still use it and the
turn.

A catch reloads the Pokémon as LoadEnemyMon does (the wild item roll is
redrawn, then the item restored), keeps its HP, status, item and DVs,
restores the moves and PP it appeared with, adds it to the party with
SetCaughtData, registers it and offers a nickname with InitName's
default. A catch with six Pokémon needs the PC and is refused.

catchtutorial runs BATTLETYPE_TUTORIAL as "DUDE": no send-out, an
automatic catch that keeps nothing and prompts that continue on their
own. Both Route 29 triggers, declining and the Dude's repeat offer run
from the ROM. The text reader now handles TX_LOW.

PLAN.md gains a status overview and done/remaining checklists; the
README, help dialog, routine map and handoff describe the milestone.

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

docs/ARCHITECTURE.md

@@ -48,4 +48,4 @@ Asset caches and the ROM reader remain in memory for lazy extraction. Neither RO
 
 The native viewport follows its available CSS dimensions and draws additional world tiles at a bounded pixel resolution. Beyond a map's edge it draws the connected map with the current tileset, as the original connection strips do, and the border block elsewhere. Resizing also redraws paused sessions. The local minimap caches terrain from the loaded map and updates its marker from the same world position used by the player; the Map tab shares that view. It is a current-area map, not a full region atlas. Leaving Game pauses the session and releases held input; returning requires explicit play. The reference player retains its own fixed-screen styling.
 
-`game/battle` now holds the native battle core and ROM-backed battle tables. Browser tests cover the overworld-to-battle flow using a test-only encounter fixture; Route 29 uses ROM encounter tables. Trainer battles share that core, with ROM trainer decoders, the trainer's send-out and switch AI, and explicit AI support checks. Map trainers (sight and talk) are started by `game/world` and run the ROM's own trainer scripts. Introduce future modules with working features: `game/audio`, then `features/link` and `features/walking`. Party and bag models live in `game/party`; scripts change them only on their draft state. Rules must not import UI/browser modules. Transports and step providers must not write directly into world state.
+`game/battle` now holds the native battle core and ROM-backed battle tables. Browser tests cover the overworld-to-battle flow using a test-only encounter fixture; Route 29 uses ROM encounter tables. Trainer battles share that core, with ROM trainer decoders, the trainer's send-out and switch AI, and explicit AI support checks. Map trainers (sight and talk) are started by `game/world` and run the ROM's own trainer scripts. Battles receive the script's draft party, bag and Pokédex, so a catch, a thrown ball or a nickname commits only with the script that started the battle. Introduce future modules with working features: `game/audio`, then `features/link` and `features/walking`. Party and bag models live in `game/party`; scripts change them only on their draft state. Rules must not import UI/browser modules. Transports and step providers must not write directly into world state.