Implement basic structure for combat system and refactor code

Assets/Scripts/Run/RewardService.cs

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+using System;
+using System.Collections.Generic;
+using KernelPanic.Data;
+
+namespace KernelPanic.Run
+{
+    /// <summary>
+    /// Provides post-wave reward choice generation contracts.
+    /// </summary>
+    public sealed class RewardService
+    {
+        public IReadOnlyList<RewardChoice> GeneratePostWaveChoices(RunConfig runConfig, int waveNumber)
+        {
+            throw new NotImplementedException();
+        }
+    }
+
+    /// <summary>
+    /// Represents one selectable reward option after clearing a wave.
+    /// </summary>
+    public readonly struct RewardChoice
+    {
+        public RewardChoice(RewardChoiceType type, CardDefinition card)
+        {
+            Type = type;
+            Card = card;
+        }
+
+        public RewardChoiceType Type { get; }
+        public CardDefinition Card { get; }
+    }
+
+    /// <summary>
+    /// Identifies the type of reward choice offered after a wave.
+    /// </summary>
+    public enum RewardChoiceType
+    {
+        AddCard,
+        UpgradeCard,
+        Skip
+    }
+}

Assets/Scripts/Run/RewardService.cs.meta

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+fileFormatVersion: 2
+guid: a06eada6fbafd6e44ae1d21238a64750

Assets/Scripts/Run/RunConfig.cs

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+using System.Collections.Generic;
+using KernelPanic.Core;
+using KernelPanic.Data;
+
+namespace KernelPanic.Run
+{
+    /// <summary>
+    /// Describes the player choices and starting deck used to begin a run.
+    /// </summary>
+    public sealed class RunConfig
+    {
+        public RunConfig(DistroDefinition distro, Language primaryLanguage, Language secondaryLanguage, IReadOnlyList<CardDefinition> startingDeck)
+        {
+            Distro = distro;
+            PrimaryLanguage = primaryLanguage;
+            SecondaryLanguage = secondaryLanguage;
+            StartingDeck = startingDeck;
+        }
+
+        public DistroDefinition Distro { get; }
+        public Language PrimaryLanguage { get; }
+        public Language SecondaryLanguage { get; }
+        public IReadOnlyList<CardDefinition> StartingDeck { get; }
+    }
+}

Assets/Scripts/Run/RunConfig.cs.meta

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+fileFormatVersion: 2
+guid: 0c3d34a2ce0e53b4b8f9a77feb60fb95

Assets/Scripts/Run/RunManager.cs

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+using KernelPanic.Combat;
+using KernelPanic.Core;
+using UnityEngine;
+
+namespace KernelPanic.Run
+{
+    /// <summary>
+    /// Coordinates run lifecycle, wave progression, and run-level event handling.
+    /// </summary>
+    public sealed class RunManager : MonoBehaviour
+    {
+        [SerializeField] private CombatManager combatManager;
+        [SerializeField] private int currentWaveNumber;
+        [SerializeField] private bool isRunActive;
+        [SerializeField] private bool isPlayerDead;
+
+        public int CurrentWaveNumber => currentWaveNumber;
+        public bool IsRunActive => isRunActive;
+        public bool IsPlayerDead => isPlayerDead;
+
+        private void OnEnable()
+        {
+            GameEvents.WaveCleared += HandleWaveCleared;
+            GameEvents.RunEnded += HandleRunEnded;
+        }
+
+        private void OnDisable()
+        {
+            GameEvents.WaveCleared -= HandleWaveCleared;
+            GameEvents.RunEnded -= HandleRunEnded;
+        }
+
+        public void StartRun(RunConfig config)
+        {
+            isRunActive = true;
+            isPlayerDead = false;
+            currentWaveNumber = 1;
+            StartCombat();
+        }
+
+        public void StartCombat()
+        {
+            combatManager?.StartCombat();
+        }
+
+        private void HandleWaveCleared(WaveClearedEvent payload)
+        {
+        }
+
+        private void HandleRunEnded(RunEndedEvent payload)
+        {
+            isRunActive = false;
+            isPlayerDead = payload.PlayerDied;
+        }
+    }
+}

Assets/Scripts/Run/RunManager.cs.meta

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+fileFormatVersion: 2
+guid: 234cc6c5ca577b64ea44020f5514cebe