Add product carousel module with template and database structure

- Created `pp_carousel.tpl` for rendering product carousel with Swiper integration.
- Added `plan.md` detailing module architecture, database schema, and implementation steps.
- Initialized log files for development and production environments.

.vscode/ftp-kr.json

@@ -12,6 +12,8 @@
   "ignoreRemoteModification": true,
   "ignore": [
     ".git",
-    "/.vscode"
+    "/.vscode",
+    "/.claude",
+    "/.serena"
   ]
 }