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>

world/zones.json

@@ -22,7 +22,7 @@
       "rule": {"biomes": ["minecraft:mangrove_swamp"]}
     },
     {
-      "id": "jungle", "guardian": {"drops": [["cobblemon:pecha_berry", 8], ["cobblemon:exp_candy_m", 2]]}, "lines": 30, "name": "Verdant Jungle", "levels": [18, 30], "hazard": "none (warm and humid, below Cold Sweat's damage)", "color": "#5a8f1e",
+      "id": "jungle", "guardian": {"drops": [["cobblesurvival:mire_waders", 1], ["cobblemon:pecha_berry", 4], ["cobblemon:exp_candy_m", 2]]}, "lines": 30, "name": "Verdant Jungle", "levels": [18, 30], "hazard": "none (warm and humid, below Cold Sweat's damage)", "color": "#5a8f1e",
       "rule": {"biomes": ["minecraft:jungle"]}
     },
     {
@@ -30,7 +30,7 @@
       "rule": {"region": {"z_max": 0, "x_min": -250}}
     },
     {
-      "id": "westmarch", "guardian": {"drops": [["cobblemon:pecha_berry", 8], ["cobblemon:exp_candy_m", 2]]}, "lines": 35, "name": "Westmarch", "levels": [15, 25], "hazard": "none", "color": "#2f8f4e",
+      "id": "westmarch", "guardian": {"drops": [["cobblesurvival:mire_waders", 1], ["cobblemon:pecha_berry", 4], ["cobblemon:exp_candy_m", 2]]}, "lines": 35, "name": "Westmarch", "levels": [15, 25], "hazard": "none", "color": "#2f8f4e",
       "rule": {"region": {"z_max": 0, "x_max": -250}}
     },
     {