test!(lua.gamestate): cover remaining untested fields

[S1M0N38]

Tracking test coverage for tests/lua/endpoints/test_gamestate.py → src/lua/utils/gamestate.lua. Living checklist; update as tests land.

Source of truth: src/lua/utils/types.lua (GameState + nested classes), src/lua/utils/enums.lua. Full matrix in tests/lua/endpoints/GAMESTATE_COVERAGE.md.

• hands — poker hand levels (entire field missing)
  • type: Hand in types.lua; extractor extract_hand_info() in gamestate.lua
  • game source: G.GAME.hands init vendors/balatro/game.lua:2002-2013; level_up_hand vendors/balatro/functions/common_events.lua:464
  • reach non-defaults: Planet cards via add/use endpoints
  • sub-fields: order, level, chips, mult, played, played_this_round, example
• Card.Modifier ×6 (all # TODO stubs) — type Card.Modifier; extractor extract_card_modifier()
  • seal: Red/Blue/Gold/Purple (Card.Modifier.Seal)
  • edition: e_foil/e_holo/e_polychrome/e_negative (consumables = e_negative only)
  • enhancement: m_bonus/m_mult/m_wild/m_glass/m_steel/m_stone/m_gold/m_lucky
  • eternal/perishable/rental: jokers only
  • reachable via add params
• Card.State.debuff — extract_card_state(); Blind:debuff_card vendors/balatro/blind.lua; set {boss:"bl_club|bl_head|bl_window|bl_goad|bl_plant"}
• Card.State.hidden — bl_house (deterministic first hand), bl_mark, bl_wheel, bl_fish
• blinds.boss.reroll_available — get_blinds_info(); gate G.FUNCS.reroll_boss_button; v_directors_cut/v_retcon + money
• challenge — get_gamestate() challenge branch; Challenge enum; start {challenge:"c_omelette_1"}