`gh aw add-wizard` asks for workflow inputs for `aw_context`

[dsyme]

Towards the end of the gh aw add-wizard sequence, the user is given the option of running the workflow

This causes the interactive sequence to ask for a value for the implicit aw_context input which the workflow doesn't actually define but which is really internal to GitHub Agentic Workflows.

Updating local branch (this may take a few seconds)...
Finished updating local branch.

ℹ Workflow: lean-squad
ℹ
Workflow Inputs:
  • aw_context - Agent caller context (used internally by Agentic Workflows).

This shouldn't be done - because this is completely unknown to the user or workflow definition it should just be skipped and the workflow run directly. Other inputs can be asked for.