annotate: remove the action_record style/feature entirely

Drop the optional structured per-subtask action records — not a feature
we want to ship.

  * language.py: remove 'action_record' from CORE_STYLES + PERSISTENT_STYLES
    (and the matching assertion in tests/datasets/test_language.py).
  * config.py: delete ActionRecordsConfig (verb/grasp vocabularies,
    frames_per_subtask, emit_record_row) and the PlanConfig.action_records
    field.
  * plan_subtasks_memory.py: delete _extract_action_record and the
    run_episode block that emitted style='action_record' rows; drop the
    now-unused json / to_image_blocks imports.
  * remove the plan_action_record.txt prompt.
  * run_hf_job.py: drop the action_records comment.

Verified: 40 tests pass; pre-commit (ruff, mypy, bandit) clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

examples/annotations/run_hf_job.py

@@ -87,8 +87,6 @@ CMD = (
     # rephrasings are unused at best and harmful when they drift.
     "--plan.n_task_rephrasings=0 "
     # Keep subtask decomposition tight for atomic tasks.
-    # (action_records left off: the {verb,object,arm,grasp,dest} schema is for
-    # long manipulation tasks, not RoboCasa atomic/navigation.)
     "--plan.plan_max_steps=10 "
     # Only subtasks + memory — skip the numbered "plan" rows. true re-enables.
     "--plan.emit_plan=false "