[Copilot]

Several Python modules in the emulsim package had missing, inaccurate, or incomplete module-level docstrings and .. autosummary:: listings.

Changes

• Missing descriptions — added accurate one-line module descriptions and .. autosummary:: blocks to actors/autonomous/active_particles.py, box.py, brownian_motion.py, and coalescence.py (previously only had .. codeauthor::)
• Grammar fix — actors/autonomous/emitters.py: "that emit … a predefined positions" → "that emits … at predefined positions"; also added missing autosummary
• Incomplete autosummaries — added missing public symbols:
  • actors/base.py: added ~ActorBase and ~find_actors
  • actors/coupling/fields.py: added ~FieldCouplingActor, ~FieldExchangeActor, ~FieldBoundaryExchangeActor
  • actors/coupling/spherical_droplet.py: added ~PointsOnSphere
  • elements/base.py: added DictElementBase
• Inaccurate description — elements/multicomponent_droplets.py said "spherical droplets"; corrected to "multicomponent droplets"; added autosummary
• No autosummary at all — added .. autosummary:: blocks to elements/points.py, elements/spherical_droplets.py, and state.py