adding abilities, created skill tree template and unlock mechanics

api/app/data/abilities/resurrection.yaml

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+# Resurrection - Luminary Divine Protection ultimate
+# Revive fallen ally
+
+ability_id: "resurrection"
+name: "Resurrection"
+description: "Call upon the divine to bring a fallen ally back to life with 50% HP and mana"
+ability_type: "spell"
+base_power: 50
+damage_type: "holy"
+scaling_stat: "wisdom"
+scaling_factor: 0.5
+mana_cost: 60
+cooldown: 8
+is_aoe: false
+target_count: 1
+effects_applied: []