feat(console): show running model batches

[Vamsi-klu]

Description

Print a durable Running row when each model evaluation batch starts, using the same aligned batch, model, interval, and status columns as completion output. This keeps long-running batches visible in CI, cron, and other captured logs.

The change adds a backward-compatible per-batch console hook, preserves existing console implementations and audit-only behavior, and reports terminal Failed and zero-duration states correctly.

Fixes #5904

Test Plan

• make fast-test
  • 2,636 passed, 4 skipped
  • 5 isolated tests passed
  • 1 registry-isolation test passed
  • 161 dialect-isolated tests passed
• .venv/bin/pytest -q tests/core/test_console.py tests/core/test_scheduler.py — 37 passed
• .venv/bin/pytest -q tests/cli/test_cli.py::test_run_dev — 2 passed
• Targeted Ruff, Ruff format, and Mypy checks for all changed files — passed

Checklist

• I have run make style and fixed any issues
• I have added tests for my changes (if applicable)
• All existing tests pass (make fast-test)
• My commits are signed off (git commit -s) per the DCO

[Vamsi-klu]

@treysp @izeigerman — could you review this? It touches console evaluation progress and scheduler batch lifecycle paths you have substantial recent ownership of.