adding abilities, created skill tree template and unlock mechanics

api/app/data/abilities/divine_storm.yaml

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+# Divine Storm - Luminary Radiant Judgment ultimate
+# Ultimate AoE holy + stun all
+
+ability_id: "divine_storm"
+name: "Divine Storm"
+description: "Unleash the full fury of the divine, dealing massive holy damage to all enemies and stunning them"
+ability_type: "spell"
+base_power: 95
+damage_type: "holy"
+scaling_stat: "wisdom"
+scaling_factor: 0.7
+mana_cost: 60
+cooldown: 5
+is_aoe: true
+target_count: 0
+effects_applied:
+  - effect_id: "divine_judgment"
+    name: "Divine Judgment"
+    effect_type: "stun"
+    duration: 1
+    power: 0
+    stat_affected: null
+    stacks: 1
+    max_stacks: 1
+    source: "divine_storm"