Lift the 18 _model_flow_* provider-setup wizard functions out of hermes_cli/main.py
into hermes_cli/model_setup_flows.py. Behavior-neutral; main.py 14050 -> 11479 LOC.
select_provider_and_model (the dispatcher) STAYS in main.py and re-imports the
flows via an explicit 'from hermes_cli.model_setup_flows import (...)' block, so
both its bare-name calls and existing test monkeypatches targeting
hermes_cli.main._model_flow_* keep resolving against main's namespace unchanged.
Imports: 3 neutral deps (argparse, os, subprocess) at the module top; the 14
main.py-internal helpers the flows call (_prompt_api_key, _save_custom_provider,
the reasoning-effort/stepfun/qwen helpers, _run_anthropic_oauth_flow, ...) are
lazy-imported per-flow (from hermes_cli.main import ...) so the new module never
imports main at module scope -> no import cycle.
Repointed one source-inspection change-detector (test_setup_ollama_cloud_force_refresh)
to read the module the ollama-cloud branch moved to.
Validation: 6563/6563 hermes_cli tests pass; live flow-dispatch probe confirms the
lazy main-internal imports resolve at runtime.
