Operator Control: Intake (aka Ground Pickup)

Develop operator ground control pickup using the intake mechanism:
- Pick up a singular power cell from ground in 1 second
- Pick up 5 power cells from ground in 5 seconds

Start by reviewing the intake mechanism and the merged pull request #117 for the implementation context. Verify that operator ground pickup handles one power cell in 1 second and five power cells in 5 seconds; completion should match both timing requirements.

Written by the indexing model from the issue text.