Add condition badges for boss Pokemon mechanics

Show colored pill badges (Mega, G-Max, D-Max, Tera) on boss Pokemon
in BossDefeatModal and BossTeamPreview. Starter-dependent condition
labels are ignored. Follows EncounterMethodBadge pattern.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/pages/RunEncounters.tsx

@@ -22,6 +22,7 @@ import {
   TypeBadge,
 } from '../components'
 import { BossDefeatModal } from '../components/BossDefeatModal'
+import { ConditionBadge } from '../components/ConditionBadge'
 import type {
   Route,
   RouteWithChildren,
@@ -239,7 +240,10 @@ function BossTeamPreview({
               ) : (
                 <div className="w-20 h-20 bg-gray-200 dark:bg-gray-700 rounded-full" />
               )}
-              <span className="text-xs text-gray-500 dark:text-gray-400">Lvl {bp.level}</span>
+              <div className="flex flex-col items-start gap-0.5">
+                <span className="text-xs text-gray-500 dark:text-gray-400">Lvl {bp.level}</span>
+                <ConditionBadge condition={bp.conditionLabel} size="xs" />
+              </div>
             </div>
           ))}
       </div>