fix: transform snake_case database columns to camelCase in companies API

The companies were being returned with database column names (snake_case)
but the TypeScript Company interface expects camelCase. Added transform
function to convert column names, fixing the localeCompare error in
mapping pages.

app/api/companies/route.ts

@@ -1,13 +1,36 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { postgresClient } from '@/lib/services/postgres-client';
 
+// Transform snake_case database columns to camelCase for TypeScript interface
+function transformCompany(row: any) {
+  return {
+    id: row.id,
+    companyName: row.company_name,
+    companyType: row.company_type,
+    isActive: row.is_active,
+    phone: row.phone,
+    fax: row.fax,
+    webAddress: row.web_address,
+    address1: row.address1,
+    address2: row.address2,
+    city: row.city,
+    state: row.state,
+    postalCode: row.postal_code,
+    country: row.country,
+    createdTime: row.created_time,
+    lastModifiedTime: row.last_modified_time,
+  };
+}
+
 export async function GET(request: NextRequest) {
   try {
     const result = await postgresClient.query(
       'SELECT * FROM companies WHERE is_active = true AND company_type = 1 ORDER BY company_name'
     );
     
-    return NextResponse.json({ companies: result.rows });
+    const companies = result.rows.map(transformCompany);
+    
+    return NextResponse.json({ companies });
   } catch (error) {
     console.error('Error fetching companies from database:', error);
     return NextResponse.json(