Design for /list endpoint (pretty print for new item_type)

[tessus]

orhun/rustypaste#587 adds the item type to the list output.

Here's an example how it would look like with the cli (rpaste -lp). Currently the size is not null in the server output, thus it still shows the length of the link.

     Name       | Size |    Type     |   Creation (UTC)    |    Expiry (UTC)
----------------|------|-------------|---------------------|--------------------
termcol.3whO.sh | 1026 | file        | 2026-07-13 10:33:36 | 2026-07-15 10:33:36
termcol.W6bU.sh | 1026 | oneshot     | 2026-07-13 10:31:55 | 2026-07-13 15:31:55
termcol.NbeM.sh | 1026 | oneshot     | 2026-07-13 10:34:04 | 2026-07-15 10:34:04
xY4c            |   28 | url         | 2026-07-13 10:33:46 | 2026-07-15 10:33:46
I4AY            |   27 | oneshot_url | 2026-07-13 10:32:26 | 2026-07-13 15:32:26
MXwI            |   27 | oneshot_url | 2026-07-13 10:33:56 | 2026-07-15 10:33:56

@orhun my question now is he following: If null is returned, what should be shown in the list?
Shall I keep it empty, or use - or N/A or n/a?

In the beginning I thought I'd use shorter strings for type (only allow 4 characters to fit the Type header), but then decided against it. 1) I didn't find nice abbreviations for oneshot and oneshot_url 2) oneshot_url is not that long of a string anyway.

[orhun]

I think n/A is good enough :) I like the rest of the table.

[tessus]

Thanks, I'll use n/a. I'll wait a bit if the OP changes the PR to use null instead of the link length. If not, I'll make the change myself.