Regenerate local artifacts and invalidate stale receipts

docs/roadmap/remediation.md

@@ -163,6 +163,8 @@ write outcomes. Both affected suites pass.
 
 ### R4 — Medium: Local artifact regeneration is prohibited
 
+Status: Resolved.
+
 Category: Inadvertently strengthened prohibition.
 
 **Evidence:** [Build](../../internal/build/build.go), around line 114, refuses
@@ -188,6 +190,12 @@ machinery.
 a changed local build can regenerate its owned names; unrelated files survive;
 a partial rebuild does not authorize incomplete assets through a stale receipt.
 
+**Resolution:** Builds regenerate selected local artifact names and preserve
+unrelated output files. The CLI invalidates prior receipts once a rebuild has
+reached its output directory, including failed rebuilds. API regressions cover
+repeated and changed-source builds; CLI coverage proves a failed smoke check
+removes the previous receipt. Affected suites pass.
+
 ### R5 — Medium: The root facade still owns release mechanics
 
 Category: Architectural ownership gap and maintainability.