Changed paths:
M dashboard/app/ai.go
M dashboard/app/ai_test.go
Log Message:
-----------
dashboard: record manager name for AI jobs
For AI jobs submitted via the dashboard, record the name of the manager
from which the config was taken (unless it is None).
It should be shown on the trajectory page along with other inputs.
Rationale: Jobs that are created manually can be used as inputs for
other jobs, and we don't want to copy the config, but just use the
manager name.