fix: bundle Rocky site manual mapping

lib/site-config.ts

@@ -1,5 +1,4 @@
-import { readFileSync } from 'fs'
-import { join } from 'path'
+import siteManufacturerMapping from '@/lib/site-manufacturer-mapping.json'
 
 /**
  * Site configuration interface
@@ -31,16 +30,7 @@ function loadSiteMapping(): {
     return siteMappingCache
   }
 
-  try {
-    const mappingPath = join(process.cwd(), 'lib', 'site-manufacturer-mapping.json')
-    const content = readFileSync(mappingPath, 'utf-8')
-    const mapping = JSON.parse(content)
-    siteMappingCache = mapping
-    return mapping
-  } catch (error) {
-    console.error('Error loading site manufacturer mapping:', error)
-    // Return default configuration for rockymountainvending.com
-    return {
+  const fallback = {
     sites: {
       'rockymountainvending.com': {
         tier: 1,
@@ -52,6 +42,17 @@ function loadSiteMapping(): {
     },
     manufacturerAliases: {},
   }
+
+  try {
+    siteMappingCache = siteManufacturerMapping as {
+      sites: Record<string, SiteConfig>
+      manufacturerAliases: Record<string, string[]>
+    }
+    return siteMappingCache
+  } catch (error) {
+    console.error('Error loading site manufacturer mapping:', error)
+    siteMappingCache = fallback
+    return siteMappingCache
   }
 }