docs: record Seriatim remediation completion

docs/roadmap/remediation.md

@@ -1,6 +1,6 @@
 # Feature 0001 Remediation Findings
 
-Status: open
+Status: resolved
 
 ## Review Scope
 
@@ -116,3 +116,14 @@ Required remediation:
   consistent build state.
 - The role and workspace repositories are clean, and remediation commits are
   ready for review before Feature 0001 is marked complete.
+
+## Resolution Evidence
+
+- Finding 1 was resolved by `ansible-role-seriatim` commit `c6c1907`.
+- Finding 2 was resolved by `ansible-role-seriatim` commit `f2c1b1a`.
+- Finding 3 was resolved by `ansible-role-seriatim` commit `92906eb`.
+- Finding 4 was resolved by `ansible-role-seriatim` commit `07dd736`.
+- Malformed state-object recovery was hardened by
+  `ansible-role-seriatim` commit `ca49dae` during the completion audit.
+- The expanded `tests/integration` suite passed after all remediation commits
+  and restored the default Seriatim installation.