Add migrations for Google Ads settings and demo data

- Create migration for global settings table and add google_ads_customer_id and google_ads_start_date columns to clients table.
- Add migration to include product_url column in products_data table.
- Insert demo data for campaigns, products, and their history for client 'pomysloweprezenty.pl'.
- Implement client management interface with modals for adding and editing clients, including Google Ads Customer ID and data retrieval start date.

.htaccess

@@ -8,10 +8,14 @@ RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
 RewriteCond %{SERVER_PORT} !=443
 RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=permanent]
 
-RewriteCond %{REQUEST_URI}  !^(.*)/libraries/(.*) [NC]
-RewriteCond %{REQUEST_URI}  !^(.*)/temp/(.*) [NC]
-RewriteCond %{REQUEST_URI}  !^(.*)/layout/(.*) [NC]
-RewriteCond %{REQUEST_URI}  !^(.*)/upload/(.*) [NC]
-RewriteRule ^([^/]*)/([^/]*)/(.*)$ index.php?module=$1&action=$2&$3 [L]
+# Statyczne zasoby - pomijaj
+RewriteCond %{REQUEST_URI} ^/(libraries|layout|upload|temp)/ [NC]
+RewriteRule ^ - [L]
 
-RewriteRule ^logowanie$ index.php?module=users&action=login_form [L]
+# Istniejące pliki/katalogi - pomijaj
+RewriteCond %{REQUEST_FILENAME} -f [OR]
+RewriteCond %{REQUEST_FILENAME} -d
+RewriteRule ^ - [L]
+
+# Wszystko inne → index.php
+RewriteRule ^(.*)$ index.php [L,QSA]