Phase 3: the Mangrove Mire poisons anyone without Mire Waders

- Companion mod zone hazards (zone/ZoneHazards.kt, data in
  data/cobblesurvival/zone_hazards/): in the Mire a player without an
  item from #cobblesurvival:mire_protection gets Poison every 5 seconds,
  with a one-time warning. Potions, milk and golden apples still help.
- Mire Waders: KubeJS leather boots, dropped by the Westmarch and Verdant
  Jungle guardians (the zones before the Mire), per Adrian's boss rule.
- Self-test mire_poisons_without_waders.
- Allow-list Cobblemon's misspelt jigsaw state in
  habitats/parched_peat_bog7.nbt, which test players now reach.

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

docs/checklists/phase-3.md

@@ -19,7 +19,9 @@ Open `build/zone-map.png` (the island coloured by zone) and read the draft in `d
 
 - **Alpha guardians** (step 4). One per zone at a fixed spot, back 5 hours after being beaten; drops help with the next zone (`docs/zone-species.md` lists them). Automated: `guardian_appears_and_returns`.
 
-Still to come: the Mire's poison (and the wading gear the Westmarch and Jungle guardians should drop for it), soft level pressure, flyers.
+- **The Mire's poison** (step 5). Mire Waders from the Westmarch and Jungle guardians keep it off. Automated: `mire_poisons_without_waders`.
+
+Still to come: soft level pressure, flyers.
 
 ## In-game
 
@@ -30,3 +32,4 @@ Still to come: the Mire's poison (and the wading gear the Westmarch and Jungle g
 - [ ] **Sunscorch heat:** the desert at noon overheats you in a couple of minutes; at night it's fine. The hide set (Hoglin Hide from 8 leather + 1 Icy Rock) or a Fire Resistance potion keeps you going.
 - [ ] **Lowlands:** a night in Southwold or on Button Isle without gear never gets dangerous.
 - [ ] **Guardians:** `/cobblesurvival guardians` (operator) lists each zone's guardian and spot. Walk there: a big Pokémon appears, can't be caught, and beating it puts its drops in your inventory with a gold message. It's gone for 5 hours of play.
+- [ ] **Mire:** walk into the Mangrove Mire: a green warning, then Poison keeps coming back. With Mire Waders on (from the Westmarch or Jungle guardian) nothing happens.