Calendar integration: Assign Calendar time to Deck card and vice versa

How to use GitHub

• Please use the 👍 reaction to show that you are affected by the same issue.
• Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
• Subscribe to receive notifications on status change and new comments.

Is your feature request related to a problem? Please describe.
Not a problem - an optimization. I would like to simplify time management/scheduling workflows and stats/report generation.

Describe the solution you'd like
I would like to suggest a direct integration between Calendar and Deck which allows the user to directly assign/link calendar times to deck cards.
E.g. when creating a new calendar time, there could be a field "Assign to deck card" which allows to pick from a list of cards. Ideally this list of cards could be filtered e.g. by board, column or "assigned to me". Also, in a deck card, there could be a link "create new time" which would lead to creation of a calendar entry for that card.
Cards would have a tab which displays all assigned calendar times.
The goal would be to simplify the scheduling workflow as well as make it easier to generate time statistics through external tools.

Describe alternatives you've considered
At the moment I'm manually entering references to cards into calendar entries but that's a little cumbersome and also relatively hard to filter when trying to generate stats or reports. It also only has references from calendar times to deck cards but I can't see any Calendar assignments in Deck.

Additional context
N/A

The issue names no files, tests, or entry points, so start by mapping how Calendar events and Deck cards are represented and linked in this repository. Done should cover assigning existing events to cards, creating an event from a card, viewing assigned times on cards, and the proposed filtering options.