Phase 9: the private pack to hand out

build/...-private.mrpack lists every mod by download link, CurseForge-only ones
included, with the credits and non-affiliation notice inside and no third-party jar.
tools/check_private_pack.py downloads all of it and checks the hashes.

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

docs/checklists/phase-9.md

@@ -18,8 +18,12 @@
 
 - **Adrian's list of 2026-11-09:** shortcuts, drop pages link to Cobblemon Info, real drop chances, bosses only hurt in battles, half the battle XP, low channels, quicker hazards, no item dots on the map, attacks start battles. Automated: `drop_chances_match_cobblemon`, `starter_only_faints`, `regional_forms_are_obtainable`, `new_players_get_the_quest_book`, `bosses_only_take_battle_damage`, `wild_attack_starts_a_battle`, `wild_attack_hurts_without_a_party`, `mire_poisons_without_waders`.
 
+- **Private pack:** `build/…-private.mrpack`. Automated: `tools/check_private_pack.py` downloads all 44 files and checks them.
+
 ## In game (Prism instance)
 
+- [ ] Import the private pack into Prism as a new instance: it downloads everything and starts.
+
 - [ ] Let your starter faint: it stays, fainted, and a Healing Machine wakes it. Try to release it and sacrifice it: both are refused. Any other Pokémon is still lost.
 - [ ] A new player spawns with the quest book. Its first page walks through the basics; the second lists every HM.
 - [ ] Are the regional forms' zones and rarity right? They're in `docs/zone-species.md`.