[FEATURE] Add Trash Can

[Dev-ev-v]

Problem

Once deleted, a note cannot be recovered.

Proposal

When notes are deleted, they are moved to a trash can where they remain for 7 days before being permanently deleted.

Use cases

First, delete one or more notes:

• doggy delete

Second, view the trash. This command lists all notes in the trash:

• doggy trash

Then, you can permanently delete one, multiple, or all notes from the trash. A confirmation message is shown before any deletion:

• doggy trash --delete
• doggy trash --delete --all

Alternatives considered

Direct deletion already removes notes, but a trash can adds a safety layer by introducing a recovery window. This is a common feature in well-designed applications.

Additional context

• Once a note is deleted from the trash, it cannot be recovered.