Add MVP code-executor and function-executor runtime support, request-port
bridging through Aryx user input, state-scope helpers, lockstep execution
mode handling, and validation/tests for new workflow node kinds.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Explicitly configure AIAgentHostOptions for the workflow modes that
host agents directly instead of relying on Agent Framework defaults.
- add a shared host-options factory that preserves Aryx's current
behavior
- use custom sequential, concurrent, and round-robin group-chat
builders so all host options are set intentionally
- add workflow-level tests asserting the configured host options
Keep EmitAgentResponseEvents disabled because Aryx still projects
streaming transcript state itself and enabling response events would
require a separate reconciliation change.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
