workflow-fix: opaque snake_case slug detection in body-discipline audit

Overview / Motivation

Auto-filed from a clean-result-critic prose follow-up on task #1315 (round 1, mechanizable: yes).

Goal

audit_clean_results_body_discipline.py: extend the opaque-condition-label pattern to backticked 3+-segment snake_case tokens ([a-z]+_[a-z]+(_[a-z0-9]+)+) in reader-facing prose sections, with an allowlist for file/field names (mix_meta.json, span_seam, etc.).

Workflow gap

• Bug observed: #1315's body used the opaque panel-context slug neg_reph_curious in reader-facing Methodology and Results prose; the audit missed it in both places (caught by the critic's spec-text opaque-code rule).
• Why it is a workflow gap: The audit's condition_labels pattern (audit script line ~142) covers C1/D1-style codes but not snake_case slugs, so the no-opaque-condition-codes rule (user memory + SPEC) has no mechanical backstop for the commonest slug shape.
• Confidence (emitter): medium
• verified-at-filing: grep -niE "opaque|condition.label" scripts/audit_clean_results_body_discipline.py → condition_labels pattern present at line ~142; no snake_case coverage in it (absence claim, inspected at filing) (2026-07-15)

Proposed change (candidate diff sketch — refine in planning)

• Add to the condition_labels detector: backticked tokens matching [a-z]+[a-z]+([a-z0-9]+)+ in Takeaways/Goal/Results prose,
• ALLOWLIST file/field names (endswith .json/.py/.pt, known field names span_seam, mix_meta, judge_raw, etc.).

Scope / surfaces

• Primary target: scripts/audit_clean_results_body_discipline.py; tests alongside.

Constraints / invariants

• Allowlist must keep existing green bodies green (dry-run over recent completed tasks in the plan); recursion guard applies.

Provenance

• workflow_fix_target: scripts/audit_clean_results_body_discipline.py
• fingerprint: b533909c219a