chore: extract phase 5 distributed slice seams

[Lythaeon]

Summary

• implement Phase 5 distributed-slice seams for command/application and controller output boundaries
• remove direct UI/charts/sinks imports from distributed auto/manual orchestration modules

Changes

• add DistributedRunCommand mode command shape and application::distributed_run execution service with a distributed port
• unify entry distributed planning into RunPlan::Distributed and compose runtime adapter in entry execution
• add distributed::controller::output adapter with OutputEvent handling for live output and finalization
• refactor controller auto/manual workflows to use output events instead of direct UI/sink/chart wiring
• reduce distributed::controller::shared::aggregation to pure aggregation/sample logic
• document Phase 5 implemented artifacts in architecture plan

Checks

• cargo make format
• cargo make clippy
• cargo make test
• cargo make architecture-check