Add command to reset price and rename file

Use correct minibuffer histories for cost reset

Change symbol for cost and discount reset

Write proof-of-concept client manager

Fix path for invtr-new-record

Use bespoke history for inventory title prompt

Make the invtr-directory expansion more robust

Make multi-receipt implementation more abstract

Use funcall on the intended variable

Use 'format' instead of 'number-to-string'

Add command for multi-item receipt

Update prompt for invtr-create-receipt

Make the receipt template a bit more abstract

Update symbol of main command in two doc strings

Add missing doc string for 96b5466