Retain repair diagnostics and correction lineage

docs/internal/diagnostics-reporting.md

@@ -37,7 +37,9 @@ under `diagnostics.work_dir`. CLI passes empty diagnostics paths and nil writers
 when debug is off. With debug enabled, it captures source and normalized
 snapshots, invocation, effective settings, correction ledger, LLM execution
 observations, and model interactions. Candidate capture includes proposals later
-rejected or interrupted. Ledger mapping preserves empty proposed and applied
+rejected or interrupted. Repair and revalidation artifacts use section, proposal,
+attempt, validator, and batch coordinates as applicable; their retained content
+is redacted using the selected role credentials. Ledger mapping preserves empty proposed and applied
 replacements and distinguishes unavailable candidates from interrupted work.
 
 A concurrency-safe diagnostic callback reports optional write failures without