F.1:7.2 - Regression checks

• RSCR-F1-E01 (Edition change). Recheck only answer-changing claims that used the changed edition.
• RSCR-F1-E02 (Use change). Recheck which sources, rivals, counterexamples, and limits matter when the question or use changes.
• RSCR-F1-E03 (New false friend). Add a concise warning when recurrent wording confusion changes the receiving answer.
• RSCR-F1-E04 (Bounded cut). Remove non-changing sources or split genuinely different questions when the active cut can no longer be inspected together.
• RSCR-F1-E05 (Search drift). A changed taxonomy, corpus, model, descriptor, scale, distance, threshold, or rank cannot silently change membership.
• RSCR-F1-E06 (Finding reach). Recheck affected material and limits when the question, access or search representation changes; retain findings whose contribution and conditions still hold.