[2pts] Implement loot system

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Description

Implement loot generation system with configurable drop rates.

Depends on: Enemy and Item classes issues

LootResolver Class

ResolveLoot(Enemy enemy)

Returns List based on:

• Enemy's LootTable
• Configurable drop probability per item
• Special rules for boss enemies

Loot Rules

• Each item in LootTable has a drop probability (0.0 - 1.0)
• Dragon always drops at least one item
• Gold always equals enemy.GoldReward
• Random seed should be injectable for deterministic testing

Requirements

• Constructor accepts optional Random seed for testing
• Default uses unseeded Random for production
• Item drop rates are configurable per item

Acceptance Criteria

• LootResolver class created
• ResolveLoot(Enemy enemy) method implemented
• Returns List based on LootTable
• Supports configurable drop probability per item
• Dragon always drops at least one item
• Gold amount equals enemy.GoldReward
• Constructor accepts optional Random seed
• Deterministic loot generation with seed for testing
• Default random behavior for production
• Class documented with XML comments