feat(awooop): classify callback trace gaps

apps/web/src/app/[locale]/awooop/runs/page.tsx

@@ -160,6 +160,8 @@ interface CallbackReplyAuditSummary {
   outbound_reply_markup_missing_trace_ref_recent_1h_total?: number;
   outbound_reply_markup_missing_trace_ref_recent_24h_total?: number;
   outbound_reply_markup_missing_trace_ref_latest_sent_at?: string | null;
+  outbound_reply_markup_trace_ref_gap_status?: string | null;
+  outbound_reply_markup_trace_ref_gap_next_action?: string | null;
   outbound_reply_markup_missing_incident_ref_top_prefixes?: Array<{
     prefix?: string | null;
     total?: number | null;
@@ -2527,6 +2529,22 @@ function CallbackReplyAuditSummaryPanel({
   const latestMissingIncidentRef = formatShortDateTime(
     summary.outbound_reply_markup_missing_incident_ref_latest_sent_at
   );
+  const traceGapStatusRaw =
+    summary.outbound_reply_markup_trace_ref_gap_status ?? "observed";
+  const traceGapStatusKey = (
+    traceGapStatusRaw === "clean" ||
+    traceGapStatusRaw === "active_gap" ||
+    traceGapStatusRaw === "recent_backlog" ||
+    traceGapStatusRaw === "legacy_backlog"
+  ) ? traceGapStatusRaw : "observed";
+  const traceGapNextActionRaw =
+    summary.outbound_reply_markup_trace_ref_gap_next_action ?? "observed";
+  const traceGapNextActionKey = (
+    traceGapNextActionRaw === "none" ||
+    traceGapNextActionRaw === "inspect_recent_outbound_source_refs" ||
+    traceGapNextActionRaw === "watch_24h_decay" ||
+    traceGapNextActionRaw === "backfill_or_archive_legacy_callbacks"
+  ) ? traceGapNextActionRaw : "observed";
   const snapshotClass = {
     captured: "border-[#9bc7a4] bg-[#f0faf2] text-[#17602a]",
     partial: "border-[#d9b36f] bg-[#fff7e8] text-[#8a5a08]",
@@ -2573,6 +2591,12 @@ function CallbackReplyAuditSummaryPanel({
             latest: latestMissingTraceRef,
           })}
         </p>
+        <p className="mt-1 text-xs font-semibold leading-5 text-[#141413]">
+          {t("outboundReplyMarkupTraceDecision", {
+            status: t(`traceGapStatuses.${traceGapStatusKey}` as never),
+            action: t(`traceGapNextActions.${traceGapNextActionKey}` as never),
+          })}
+        </p>
         <p className="mt-1 text-xs leading-5 text-[#5f5b52]">
           {t("outboundReplyMarkupIncidentFreshness", {
             recent1h: