Describe Johto as complete in the README and plan [no-card]

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

docs/PLAN.md

@@ -26,7 +26,7 @@ The emulator-backed prototype is now at `/reference.html`. The default applicati
 | Wild and trainer battles, capture and the catching tutorial                  | Done for the areas that are open        |
 | 1. Complete the overworld foundation                                         | Done                                    |
 | 2. Opening story and first battle slice                                      | Mostly done                             |
-| 3. Complete Crystal                                                          | Early                                   |
+| 3. Complete Crystal                                                          | In progress (Johto done)                |
 | 4. Modern mobile presentation and delivery                                   | First increment done                    |
 | 5. World map and Pokédex                                                     | Early (atlas, Pokédex list and entries) |
 | 6. Internet Link and friends                                                 | Not started                             |
@@ -462,7 +462,7 @@ The numbered sections below keep their full scope. Each one opens with a checkli
 
 The battle core, ROM tables, encounter hooks, battle UI and whiteout hooks are present. Unit tests cover wins, escape, loss, experience, move learning and capture; reference tests compare damage, type effectiveness, stat calculation and experience curves. Browser tests drive a test-only wild encounter through the real UI: victory with level-up and move learning, escape, whiteout, catching with a nickname, keyboard and on-screen D-pad menu navigation, mid-battle backup restore, rollback of unsupported effects, switching through the party menu and a Potion from the Items pocket. Real Route 29 encounters now use the ROM's encounter tables. Every ball can be thrown; only the contest's Park Ball handling remains.
 
-This is still not a complete new game. The Pokégear's radio, the Pokédex's area view, search and other modes, story progression beyond Ecruteak City and Morty's gym, and audio remain unfinished. The start menu opens the party menu and the pack, and Select uses the registered item, such as the Bicycle; the PCs store Pokémon, items and decorations. Surfing and terrain animation now have native implementations; later maps remain gated. Save slots, online Link, friends and real-world steps come later.
+This is still not a complete new game. The Pokégear's radio, the Pokédex's area view, search and other modes, the League, Kanto and the postgame, and audio remain unfinished. The start menu opens the party menu and the pack, and Select uses the registered item, such as the Bicycle; the PCs store Pokémon, items and decorations. Surfing and terrain animation now have native implementations; Kanto's maps remain gated. Save slots, online Link, friends and real-world steps come later.
 
 ## 1. Complete the overworld foundation
 
@@ -553,7 +553,8 @@ Acceptance: finish the opening quest, including encounters and the rival battle,
 - [x] Evolution by level, happiness, Tyrogue's stats and stones, with Rare Candy and vitamins (trade evolutions need Link)
 - [ ] Breeding, eggs and the rest of PC storage
 - [ ] Field moves, gyms, Rocket events, the phone and Pokégear, puzzles, minigames, daily events, roaming Pokémon and the postgame
-- [ ] Johto beyond Route 30, the League, Kanto and the final battle
+- [x] Johto beyond Route 30: every city, gym, Rocket event, puzzle and minigame to the Rising Badge, Tin Tower, Whirl Islands and the Battle Tower
+- [ ] The League, Kanto and the final battle
 - [ ] Music and sound through Web Audio
 - [ ] Acceptance: main-game and postgame playthroughs, battle regression vectors, long sessions and save recovery