Enhance logging in MerchantStore and NostrmarketAPI for better debugging

- Update the MerchantStore component to include detailed logging during merchant profile creation, capturing wallet ID and admin key details.
- Improve NostrmarketAPI request logging to include method type, headers with masked API key, and a preview of the request body.

These changes aim to facilitate easier debugging and provide more context during API interactions and merchant profile creation.

src/modules/market/components/MerchantStore.vue

@@ -663,7 +663,11 @@ const createMerchantProfile = async () => {
   merchantCreateError.value = null
   
   try {
-    console.log('Creating merchant profile...')
+    console.log('Creating merchant profile...', {
+      walletId: wallet.id,
+      adminKeyLength: wallet.adminkey.length,
+      adminKeyPreview: wallet.adminkey.substring(0, 8) + '...'
+    })
     
     // Create merchant with empty config, exactly like the nostrmarket extension
     const merchantData = {