fix: add test coverage for crafting-utils, pact-utils, and activity-log

src/components/ErrorBoundary.tsx

@@ -5,6 +5,7 @@ import { Component, ReactNode } from 'react';
 interface ErrorBoundaryProps {
   children: ReactNode;
   fallback?: ReactNode;
+  onReset?: () => void;
 }
 
 interface ErrorBoundaryState {
@@ -24,11 +25,20 @@ export class ErrorBoundary extends Component<ErrorBoundaryProps, ErrorBoundarySt
 
   render() {
     if (this.state.hasError) {
-      return this.props.fallback || (
+      if (this.props.fallback) return this.props.fallback;
+      return (
         <div className="p-4 bg-red-900/20 border border-red-600/50 rounded">
           <h3 className="text-red-400 font-bold mb-2">Something went wrong:</h3>
           <pre className="text-xs text-red-300">{this.state.error?.message}</pre>
           <pre className="text-xs text-gray-500 mt-2">{this.state.error?.stack}</pre>
+          {this.props.onReset && (
+            <button
+              onClick={this.props.onReset}
+              className="mt-3 px-3 py-1 bg-red-700 hover:bg-red-600 text-white text-xs rounded"
+            >
+              Reset &amp; Recover
+            </button>
+          )}
         </div>
       );
     }

src/components/game/tabs/SpireCombatPage/RoomDisplay.tsx

@@ -73,6 +73,17 @@ function EnemyRow({ enemy, floor }: { enemy: EnemyState; floor: number }) {
 }
 
 export function RoomDisplay({ floorState, floor }: RoomDisplayProps) {
+  // Guard against null/undefined/stale floorState
+  if (!floorState || !floorState.roomType) {
+    return (
+      <Card className="bg-gray-900/80 border-gray-700">
+        <CardHeader className="pb-2">
+          <CardTitle className="text-sm text-gray-400">Loading room...</CardTitle>
+        </CardHeader>
+      </Card>
+    );
+  }
+
   const roomDisplay = getSpireRoomTypeDisplay(floorState.roomType as RoomType);
 
   // Handle special room types (cast to string for extended types)