feat: nouveaux apprentissages (Capacités de Totem, Historique, Réputation) et expérience de Groupe

- Dialogue d'apprentissage personnage : 4 nouveaux types d'achat.
  - Capacité de Totem : options filtrées (mode de jeu, niveau de
    groupe, totem, non-apprises), difficulté = valeur d'Apprentissage,
    limites 3×N1 / 1×N2-N3 / max 5, marque system.learned de l'item
    (convention type character) et learned.ability du personnage.
  - Élément d'Historique : difficulté 9, handicap 1 si astérisque
    (background.asterisk), marque learned.background + item.
  - Test de Réputation (réduire/augmenter) : réduire = difficulté
    10 − score visé (−1 pt), augmenter = difficulté = réputation
    actuelle (+1 par succès), bornes 0-10, marque learned.reputation.
  - Évolution : option Dé de Totem Adapté ×2 quand Adapté > Humain
    (1D remplacé par un dé adapté compté ×2 via VermineUtils.roll).
- Correction règles : les Dés d'Expérience sont dépensés même en cas
  d'échec du jet d'apprentissage (décompte hors #applySuccess).
- Expérience de Groupe : nouveau dialogue d'apprentissage de Groupe
  (niveau, réserve, capacité de totem), réserve d'expérience et phase
  dans system.experience, boutons sur la fiche Groupe, reset des
  limites par phase (level/reserve/ability).
- Phase d'expérience : filtre par groupe sélectionné, associe chaque
  personnage à son premier groupe, reset des limites de tous les
  nouveaux types d'apprentissage.
- Corrections : l'attaque de créature n'ajoute plus la Réaction du Rôle
  (regles_creatures.txt), suppression de la case XP des en-têtes PJ
  (legacy et AppV2).
- Divers : .eslintrc.js (règles inexistantes/obsolètes retirées),
  libellé jaune de dialogue en couleur chitine, i18n FR/EN, chips
  « appris » sur l'onglet expérience du personnage.

lang/en.json

@@ -381,6 +381,9 @@
     "learned_reserve": "Reserve",
     "learned_characteristic": "Characteristic",
     "learned_evolution": "Evolution",
+    "learned_ability": "Totem capacity",
+    "learned_background": "Background",
+    "learned_reputation": "Reputation",
     "no_character": "No character in this world.",
     "apply": "Apply",
     "characteristic": "Characteristic",
@@ -389,11 +392,22 @@
     "learn_characteristic": "Characteristic",
     "learn_reserve": "Reserve",
     "learn_evolution": "Evolution die",
+    "learn_totem_ability": "Totem capacity",
+    "learn_background": "Background element",
+    "learn_reputation": "Reputation",
+    "learn_adapted_die": "Replace 1 Experience die with an Adapted totem die (×2)",
+    "adapted_die_x2": "1 Adapted totem die ×2",
     "learn_specialty_name": "Specialty name",
     "specialty_hint": "Prerequisite: skill at least Proficient (≥2).",
     "characteristic_hint": "Difficulty 9 + Handicap = current value. Max 3 (except Superhuman).",
     "reserve_hint": "Difficulty = current value + age Handicap. Max 10.",
     "evolution_hint": "Difficulty by age + Handicap = accumulated Evolution dice. Adapted totem +1D, Human -1D.",
+    "totem_ability_hint": "Prerequisites: same Totem as the character, Group level ≥ Capacity level, game mode compatible (Survival N1, Nightmare N2, Apocalypse N3).",
+    "background_hint": "Difficulty 9. Handicap (I) if the Background is marked with an asterisk (*). GM authorization required.",
+    "reputation_hint": "Reduce = more famous (Difficulty 10 − target score, 1 pt max per phase). Increase = fade into obscurity (requires a major Objective, Difficulty = current Reputation, +1 per Success).",
+    "reputation_reduce": "Become more famous (reduce)",
+    "reputation_increase": "Fade into obscurity (increase)",
+    "reputation_current": "Current Reputation",
     "dice_spent": "Dice spent",
     "learning_success": "Learning successful!",
     "error_no_experience_dice": "No Experience dice available.",
@@ -402,6 +416,25 @@
     "error_characteristic_max": "Characteristic already at maximum (3).",
     "error_specialty_requirement": "Specialty requires: skill at least Proficient (≥2).",
     "error_reserve_max": "Reserve already at maximum (10).",
+    "no_totem_ability": "No Totem capacity available to learn.",
+    "no_background": "No background element to acquire.",
+    "error_totem_mode": "Capacity level incompatible with the game mode.",
+    "error_totem_totem": "The character must share the Totem of the Capacity.",
+    "error_totem_group_level": "Group level insufficient for this Capacity.",
+    "error_totem_limit": "Totem capacity limit reached (3× Level 1, 1× Levels 2 and 3, max 5).",
+    "error_reputation_min": "Reputation already at minimum (0).",
+    "error_reputation_max": "Reputation already at maximum (10).",
+    "error_evolution_no_adapted": "The character must have strictly more Adapted than Human totem dice.",
+    "learn_level": "Group level",
+    "learn_group_reserve": "Group reserve",
+    "learn_ability": "Group capacity",
+    "group_level_hint": "Difficulty = number of members. Handicap = current Group level. Max 10.",
+    "group_reserve_hint": "Difficulty = current Reserve value. Handicap II. Max 10.",
+    "group_ability_hint": "Difficulty = Learning. Handicap = Capacity level. Requires Group level ≥ Capacity level.",
+    "no_group_ability": "No Group capacity available to develop.",
+    "error_group_level_max": "Group level already at maximum (10).",
+    "error_group_reserve_max": "Group reserve already at maximum.",
+    "error_group_level_requirement": "Group level insufficient for this Capacity.",
     "experience_transfer": "Experience dice",
     "experience_pull": "Pull from group",
     "experience_give": "Give 1D to group",