feat: Add prop-types dependency, implement currency context, and enhance pricing display in components

- Added `prop-types` for better prop validation in components.
- Introduced `CurrencyProvider` to manage currency context and preload exchange rates.
- Updated pricing logic in various components to support new price structure and display currency.
- Refactored BOMSummary, MotorStep, and PowerSupplyStep to utilize new pricing methods and improve user experience.
- Enhanced export utilities to format prices correctly in markdown and Excel outputs.
- Updated hardware and component data structures to include detailed pricing information.

website/src/hooks/usePriceFormat.js

@@ -0,0 +1,39 @@
+import { useState, useEffect } from 'react';
+import { useCurrency } from '../contexts/CurrencyContext';
+import { formatPrice as formatPriceUtil } from '../utils/priceFormat';
+import { convertPrice } from '../utils/currencyService';
+
+/**
+ * Hook to format prices using the selected currency from context with conversion
+ */
+export function usePriceFormat() {
+  const { currency, exchangeRates } = useCurrency();
+  const [convertedPriceCache, setConvertedPriceCache] = useState(new Map());
+
+  const formatPrice = async (price, preferredCurrency = null) => {
+    const displayCurrency = preferredCurrency || currency;
+    
+    // Convert price to target currency if needed
+    if (exchangeRates && price) {
+      try {
+        const converted = await convertPrice(price, displayCurrency, exchangeRates);
+        return formatPriceUtil(converted, displayCurrency);
+      } catch (error) {
+        console.warn('Failed to convert price, using original:', error);
+        return formatPriceUtil(price, displayCurrency);
+      }
+    }
+    
+    return formatPriceUtil(price, displayCurrency);
+  };
+
+  // Synchronous version for use in render (uses cache or returns promise)
+  const formatPriceSync = (price, preferredCurrency = null) => {
+    const displayCurrency = preferredCurrency || currency;
+    // For now, return the formatted price without conversion in sync mode
+    // Conversion will happen in components that can handle async
+    return formatPriceUtil(price, displayCurrency);
+  };
+
+  return { formatPrice, formatPriceSync, currency, exchangeRates };
+}