Automatically add creation date and time to a note.

Is your feature request related to a problem? Please describe.
Adding creation date and time metadata to the note would help the app to be used as a way to take quick log notes. Date and time is a simple but valuable piece of information that makes a note relevant; adding creation time to every note manually is cumbersome.

My use case is to use this app as lightweight, quick to open front-end to take quick notes, which could later be used by more advanced pkm apps like org-mode or logseq, because of this app has the wonderful feature of saving its data in plain text format as a .org file.

Describe the solution you'd like
Add "creation time" metadata to the note in the org file.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here

The issue names no files, tests, or entry points. Review how notes are serialized to the plain-text .org file and determine how creation-time metadata should be represented; done means every newly created note carries the date and time without manual entry.