Have a field that automatically reduces when users add hours to a project.

Keep the total allocation per project so user can see it - example: 50 hrs for X.
Add a field that starts at 50 hrs and goes down when users add chips (50-4-4-4, etc.)
(goal is to get the hours as close to 0 as possible for users).

The issue names no files, tests, or entry points. Start by tracing how projects store total allocations and how users add chips, then determine where the remaining-hours field belongs. Done means a project starts with its allocation and the displayed remainder decreases correctly as chips are added.

Written by the indexing model from the issue text.