Fix minimarket form data handling and Excel template integration

- Ensured minimarket_store_type section is properly generated in config.json
- Form now correctly saves and processes minimarket data when selected
- Excel template integration working for all store types including minimarket

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

config.json

@@ -1,37 +1,47 @@
 {
   "user_data": {
-    "first_name": "Denisa",
-    "last_name": "Cirsteas",
-    "company_name": "footprints",
-    "email": "test@test.ro",
-    "phone": "1231231231",
-    "store_name": "TEST9",
-    "country": "Romania",
-    "starting_date": "2026-01-01",
-    "duration": 36,
+    "first_name": "ggggfd",
+    "last_name": "fdgd",
+    "company_name": "hlhl",
+    "email": "kjhkjhk",
+    "phone": "hkjhkj",
+    "store_name": "asc",
+    "country": "hlkhkj",
+    "starting_date": "2025-10-01",
+    "duration": 24,
     "store_types": [
       "Convenience",
-      "Supermarket"
+      "Minimarket"
     ],
     "open_days_per_month": 30,
     "convenience_store_type": {
-      "stores_number": 4000,
-      "monthly_transactions": 40404040,
+      "stores_number": 100,
+      "monthly_transactions": 101010,
       "has_digital_screens": true,
-      "screen_count": 2,
+      "screen_count": 3,
       "screen_percentage": 100,
       "has_in_store_radio": true,
       "radio_percentage": 100,
       "open_days_per_month": 30
     },
-    "supermarket_store_type": {
-      "stores_number": 200,
-      "monthly_transactions": 20202020,
+    "minimarket_store_type": {
+      "stores_number": 1000,
+      "monthly_transactions": 123123123,
       "has_digital_screens": true,
-      "screen_count": 4,
-      "screen_percentage": 100,
+      "screen_count": 2,
+      "screen_percentage": 1000,
       "has_in_store_radio": true,
-      "radio_percentage": 100,
+      "radio_percentage": 1000,
+      "open_days_per_month": 30
+    },
+    "supermarket_store_type": {
+      "stores_number": 0,
+      "monthly_transactions": 0,
+      "has_digital_screens": false,
+      "screen_count": 0,
+      "screen_percentage": 0,
+      "has_in_store_radio": false,
+      "radio_percentage": 0,
       "open_days_per_month": 30
     },
     "hypermarket_store_type": {
@@ -45,19 +55,27 @@
       "open_days_per_month": 30
     },
     "on_site_channels": [
-      "Website"
+      "Website",
+      "Mobile App"
     ],
-    "website_visitors": 1001001,
-    "app_users": 0,
+    "website_visitors": 121212,
+    "app_users": 232323,
     "loyalty_users": 0,
     "off_site_channels": [
-      "Email"
+      "Facebook Business",
+      "Google Business Profile"
     ],
-    "facebook_followers": 0,
+    "facebook_followers": 123123,
     "instagram_followers": 0,
-    "google_views": 0,
-    "email_subscribers": 100000,
+    "google_views": 123123,
+    "email_subscribers": 0,
     "sms_users": 0,
-    "whatsapp_contacts": 0
+    "whatsapp_contacts": 0,
+    "potential_reach_in_store": 0,
+    "unique_impressions_in_store": 0,
+    "potential_reach_on_site": 0,
+    "unique_impressions_on_site": 0,
+    "potential_reach_off_site": 0,
+    "unique_impressions_off_site": 0
   }
 }