ASA: Can we move away from using the FUEL_RASTER_NAME env

**Describe the task**
It would be nice if we could remove our dependence on the FUEL_RASTER_NAME environment variable.

**Acceptance Criteria**
- [ ] No more FUEL_RASTER_NAME
- [ ] All writing and reading of data works without this env
- [ ] Migrations work without this env
- [ ] Jobs work without this env

**Additional context**
- Add any other context about the task here.
- Or here

No files, tests, or entry points are named. Start by locating all reads and writes of FUEL_RASTER_NAME, then trace its use through data access, migrations, and jobs. Done means those areas work without the environment variable and no references remain.

Written by the indexing model from the issue text.