feat: Add initial index.php file and remove prod.log

- Created a new index.php file with the necessary PrestaShop license and configuration.
- Removed the empty prod.log file from the logs directory.

.vscode/ftp-kr.sync.cache.json

@@ -6567,20 +6567,20 @@
                 },
                 "custom.css": {
                   "type": "-",
-                  "size": 7834,
-                  "lmtime": 1754468495858,
+                  "size": 8247,
+                  "lmtime": 1755118842974,
                   "modified": false
                 },
                 "custom.css.map": {
                   "type": "-",
-                  "size": 6866,
-                  "lmtime": 1754468495858,
+                  "size": 7629,
+                  "lmtime": 1755118842974,
                   "modified": false
                 },
                 "custom.scss": {
                   "type": "-",
-                  "size": 4854,
-                  "lmtime": 1754468495577,
+                  "size": 5406,
+                  "lmtime": 1755118842809,
                   "modified": false
                 },
                 "default-skin.png": {
@@ -11592,7 +11592,7 @@
                 "head.tpl": {
                   "type": "-",
                   "size": 3136,
-                  "lmtime": 1754468534342,
+                  "lmtime": 1755118830631,
                   "modified": false
                 },
                 "head_.tpl": {