feat(debug): implement debug server for development environment

- Added `listenDebugServer` function to handle debug requests.
- Introduced table based debug page with different functionalities.
- Updated Makefile to use `scc` for code analysis instead of `cloc`.

cmd/debug_page_prod.go

@@ -0,0 +1,7 @@
+//go:build production
+
+package main
+
+func listenDebugServer() {
+	// no-op
+}