Clean up MissionTab: remove unused imports and state variables

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/components/MissionTab.jsx

@@ -1,5 +1,4 @@
-import React, { useState, useEffect, useMemo } from 'react';
-import { Tooltip } from './DeathwatchRoller';
+import React, { useState } from 'react';
 
 // Inline combat helpers (mirrors DeathwatchRoller logic)
 function d100() { return Math.floor(Math.random() * 100) + 1; }
@@ -21,13 +20,10 @@ const THREAT_LEVELS = ['Low', 'Medium', 'High', 'Extreme'];
 function uid() { return Math.random().toString(36).slice(2) + Date.now().toString(36); }
 
 function MissionTab({ authedPlayer }) {
-  const [active, setActive] = useState(false);
   const [scenes, setScenes] = useState([]);
   const [currentScene, setCurrentScene] = useState(0);
   const [threat, setThreat] = useState('Medium');
   const [missionName, setMissionName] = useState('');
-  const [enemies, setEnemies] = useState([]);
-  const [players, setPlayers] = useState([]);
   const [combatLog, setCombatLog] = useState([]);
   const [sceneComplete, setSceneComplete] = useState(false);
   const [sceneResult, setSceneResult] = useState(null);
@@ -44,10 +40,6 @@ function MissionTab({ authedPlayer }) {
   // Combat state
   const [selectedEnemy, setSelectedEnemy] = useState(null);
   const [selectedPlayer, setSelectedPlayer] = useState(null);
-  const [attackRoll, setAttackRoll] = useState(null);
-  const [defenseRoll, setDefenseRoll] = useState(null);
-  const [damageRoll, setDamageRoll] = useState(null);
-  const [attackResult, setAttackResult] = useState(null);
 
   // Predefined enemy types from DeathwatchRoller
   const ENEMY_TYPES = [
@@ -136,7 +128,6 @@ function MissionTab({ authedPlayer }) {
         const dg = degrees(playerBS, attack);
 
         if (dg.success) {
-          const hits = hitsFromDoS('single', dg.dos, 1);
           const damage = Math.max(0, Math.floor(Math.random() * 10) + 5 - enemy.armour);
           enemy.currentWounds = Math.max(0, enemy.currentWounds - damage);
           totalDamage += damage;