Combat Backend & Data Models

- Implement Combat Service
- Implement Damage Calculator
- Implement Effect Processor
- Implement Combat Actions
- Created Combat API Endpoints

api/app/data/enemies/dire_wolf.yaml

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+# Dire Wolf - Medium beast enemy
+# A large, ferocious predator
+
+enemy_id: dire_wolf
+name: Dire Wolf
+description: >
+  A massive wolf the size of a horse, with matted black fur and eyes
+  that glow with predatory intelligence. Its fangs are as long as daggers,
+  and its growl rumbles like distant thunder.
+
+base_stats:
+  strength: 14
+  dexterity: 14
+  constitution: 12
+  intelligence: 4
+  wisdom: 10
+  charisma: 6
+  luck: 8
+
+abilities:
+  - basic_attack
+  - savage_bite
+  - pack_howl
+
+loot_table:
+  - item_id: wolf_pelt
+    drop_chance: 0.60
+    quantity_min: 1
+    quantity_max: 1
+  - item_id: wolf_fang
+    drop_chance: 0.40
+    quantity_min: 1
+    quantity_max: 2
+  - item_id: beast_meat
+    drop_chance: 0.70
+    quantity_min: 1
+    quantity_max: 3
+
+experience_reward: 40
+gold_reward_min: 0
+gold_reward_max: 5
+difficulty: medium
+
+tags:
+  - beast
+  - wolf
+  - large
+  - pack
+
+base_damage: 10
+crit_chance: 0.10
+flee_chance: 0.40