Name the container in loot prompts - #1672

When looting a container, the item prompts don't say which container:

Put in what type of objects?
Take out what?
What do you want to stash?

With several containers in inventory it's easy to load the wrong one. I put a bag
of tricks into a bag of holding this way; the "Do what with your bag called
holding?" line scrolls off before the item selection appears.

This names the container in those prompts, using its full description (BUC state and
contents count included):

Put what type of objects into a blessed bag called holding containing 27 items?
Take what out of an empty uncursed sack?
What do you want to stash in a blessed bag called holding containing 27 items?

Implementation: the prompts in menu_loot(), traditional_loot() (class prompt only —
the per-item askchain() prompts keep the short "put in" verb) and getobj() (verb
"stash") are built with safe_qbuf(..., doname, ansimpleoname, ...), the same idiom as
the "Pick up ?" prompt in pickup.c, so a long name falls back to the simple form
instead of overflowing. No new functions. The "Do what with your ?" action menu is unchanged. The existing "You cannot fit X into Y" messages are unchanged.

Tested in tty and Qt on macOS with menustyle full and traditional, against the
5.0.0 release; rebased onto current NetHack-5.0 and compile-checked there.

🤖 Generated with Claude Code

🙎‍♂️ Reviewed by human Crissman

https://claude.ai/code/session_01WJwWF29Bgj7KvkVqPrVr5M