Add missing support for `workflow.run()` arguments for ROMS models

The following arguments for `workflow.run()` are currently NOT supported with ROMS models: `trim_obs`, `no_matching`, and `force_obs_time`.

They should all be supported by ROMS too, and in general they should be model independent where possible.

Start by locating the Python implementation of workflow.run() and the ROMS model-specific path. Trace how trim_obs, no_matching, and force_obs_time are handled for other models, then verify that each argument works with ROMS and remains model-independent where possible.

Written by the indexing model from the issue text.