Thin CLI direct internal dependencies

[pesap]

Type

AFK

Objective

Keep CLI as a thin interaction shell by routing orchestration through arco-ops.

Acceptance criteria

• arco-cli imports orchestration from arco-ops.
• Direct dependencies on compile/export/solver internals are removed where facade exists.
• CLI command snapshots or integration tests pass.
• CLI remains responsible only for flags, formatting, diagnostics, and user I/O.