feat(awooop): classify callback trace gaps

apps/web/messages/en.json

@@ -3061,6 +3061,7 @@
           "outboundDetail": "source_refs {sourceRefs}; trace refs {traceRefs}; incident refs {incidentRefs}; coverage {coverage}",
           "outboundReplyMarkupDetail": "reply_markup {replyMarkup}; missing trace refs {missingTraceRefs}; missing incident refs {missingIncidentRefs}",
           "outboundReplyMarkupTraceFreshness": "Missing trace activity: 1h {recent1h} / 24h {recent24h} / latest {latest}",
+          "outboundReplyMarkupTraceDecision": "Trace gap decision: {status}; next: {action}",
           "outboundReplyMarkupIncidentFreshness": "Missing incident activity: 1h {recent1h} / 24h {recent24h} / latest {latest}",
           "outboundReplyMarkupTopPrefixes": "Missing incident top prefixes: {prefixes}",
           "outboundReplyMarkupTraceTopPrefixes": "Missing trace top prefixes: {prefixes}",
@@ -3080,6 +3081,20 @@
             "no_callback": "No callback yet",
             "observed": "Recorded"
           },
+          "traceGapStatuses": {
+            "clean": "Clean",
+            "active_gap": "Active gap",
+            "recent_backlog": "Recent backlog",
+            "legacy_backlog": "Legacy backlog",
+            "observed": "Recorded"
+          },
+          "traceGapNextActions": {
+            "none": "No follow-up needed",
+            "inspect_recent_outbound_source_refs": "Inspect outbound source_refs from the last hour",
+            "watch_24h_decay": "Watch the 24h window decay to zero",
+            "backfill_or_archive_legacy_callbacks": "Backfill or archive legacy callback gaps",
+            "observed": "Wait for the next outbound evidence"
+          },
           "nextActions": {
             "none": "No follow-up needed",
             "press_telegram_detail_or_history": "Press Telegram Detail / History once to create callback evidence",

apps/web/messages/zh-TW.json

@@ -3062,6 +3062,7 @@
           "outboundDetail": "source_refs {sourceRefs}；trace refs {traceRefs}；incident refs {incidentRefs}；覆蓋 {coverage}",
           "outboundReplyMarkupDetail": "reply_markup {replyMarkup}；缺 trace refs {missingTraceRefs}；缺 incident refs {missingIncidentRefs}",
           "outboundReplyMarkupTraceFreshness": "缺 trace 活躍度：1h {recent1h} / 24h {recent24h} / 最新 {latest}",
+          "outboundReplyMarkupTraceDecision": "缺 trace 判讀：{status}；下一步：{action}",
           "outboundReplyMarkupIncidentFreshness": "缺 incident 活躍度：1h {recent1h} / 24h {recent24h} / 最新 {latest}",
           "outboundReplyMarkupTopPrefixes": "缺 incident top prefixes：{prefixes}",
           "outboundReplyMarkupTraceTopPrefixes": "缺 trace top prefixes：{prefixes}",
@@ -3081,6 +3082,20 @@
             "no_callback": "尚無 callback",
             "observed": "已記錄"
           },
+          "traceGapStatuses": {
+            "clean": "乾淨",
+            "active_gap": "新缺口",
+            "recent_backlog": "近期歷史債",
+            "legacy_backlog": "歷史待清",
+            "observed": "已記錄"
+          },
+          "traceGapNextActions": {
+            "none": "不需補動作",
+            "inspect_recent_outbound_source_refs": "檢查近 1 小時 outbound source_refs",
+            "watch_24h_decay": "觀察 24 小時窗口自然歸零",
+            "backfill_or_archive_legacy_callbacks": "歸檔或回補舊 callback 缺口",
+            "observed": "等待下一次 outbound evidence"
+          },
           "nextActions": {
             "none": "不需補動作",
             "press_telegram_detail_or_history": "按一次 Telegram 詳情 / 歷史產生 callback evidence",

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: