feat(experience): atout Socle de compétences — +1D gratuit dans le dialogue d'apprentissage

lang/en.json

@@ -517,6 +517,8 @@
     "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.",
+    "socle_competences_hint": "Socle de compétences atout: +{level} free Experience die (skill already possessed).",
+    "socle_competences_message": "Socle de compétences: +{level} free Experience die. Reminder: a Group companion who learns or develops with him a skill he possesses also gains 1 Experience die.",
     "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).",