refactor: Update time planning feature

- Update checksums for browser compatibility
- Add script to kill running server process
- Refactor time planning structure and handling
- Adjust database schema and type definitions accordingly

kill-running-server.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# This script checks if a process is running on port 3000 and kills it if it's found
+
+lsof -i TCP:3000 | grep LISTEN | awk '{print $2}' | xargs kill -9