add soft deletion to cleezy

[evanugarte]

instead of deleting records from sqlite, lets add a deleted_at column that we set to the current time when a row is deleted.

that way we can bring records back if needed.

game plan

• follow fastapi and argparse tutorial
• learn basic sqlite usage in python (see provided resources from sce discord)
• add a deleted_at column and a partial index so that deleted records arent taking up space in the alias column
• open a separate pr to update the readme on how to do a migration for a sqlite file
• open the pr with the sqlite changes