fix(delivery): 删除通知只登记 KAFKA:msg，schd 不再发 tombstone（ACM2-87）

- FdelProcessor 移除 schd TOMBSTONE，仅保留 msg 删除通知（C-9）
- HistorySweepJob 补发的清退通知由 schd TOMBSTONE 改为 msg 删除通知
- msg value 形态沿用现状（deleted:true JSON），待 Q5 定稿不改成 null tombstone
- 同步修订 FdelAndAdftProcessorTest / HistorySweepJobTest / HistorySweepPurgePgTest 断言

src/main/kotlin/com/gzzn/omms/msgexchange/jobs/HistorySweepJob.kt

@@ -68,7 +68,7 @@ class HistorySweepJob(
 
         val toPurge = candidates.filter { it.flid in archivedFlids }
         // 归档与删除之间主泵可能已写入同一 FLID：进锁事务后按 (FLID, STATE_VERSION) 复查，
-        // 仍合格才登记 tombstone 并删除；事件与删除同事务提交或回滚（D1、US-14 AC4）。
+        // 仍合格才登记删除通知并删除；事件与删除同事务提交或回滚（D1、US-14 AC4）。
         var purged = 0
         txManager.inTransaction {
             lock.lock()
@@ -78,7 +78,7 @@ class HistorySweepJob(
                 // 从没收到过 FDEL、被这里直接清掉的航班，删除前补发一次通知，否则下游一直以为它还在
                 val preDelete = rechecked.filter { it.wasNeverFdel }
                 if (preDelete.isNotEmpty()) {
-                    msgEvents.insertAll(preDelete.map { tombstone(it, now) })
+                    msgEvents.insertAll(preDelete.map { deletionNotice(it, now) })
                 }
                 purged = flightState.purgeArchived(rechecked)
             }
@@ -86,10 +86,10 @@ class HistorySweepJob(
         return SweepOutcome(candidates.size, archivedFlids.size, purged, snapLogPurged)
     }
 
-    private fun tombstone(candidate: HistoryCandidate, createdAt: Instant) = MsgEvent(
-        target = Targets.KAFKA_SCHD,
+    /** C-9：删除通知只走 KAFKA:msg；value 形态（"deleted":true 的 JSON）沿用现状，待 Q5 定稿。 */
+    private fun deletionNotice(candidate: HistoryCandidate, createdAt: Instant) = MsgEvent(
+        target = Targets.KAFKA_MSG,
         partitionKey = candidate.flid,
-        eventType = EventType.TOMBSTONE,
         stateVersion = candidate.stateVersion,
         payloadJson = """{"flid":"${candidate.flid}","stateVersion":${candidate.stateVersion},"deleted":true}""",
         createdAt = createdAt,

src/main/kotlin/com/gzzn/omms/msgexchange/processing/DynamicProcessors.kt

@@ -86,20 +86,8 @@ class FdelProcessor(
             val createdAt = clock.instant()
             msgEvents.insertAll(
                 listOf(
-                    MsgEvent(
-                        target = Targets.KAFKA_SCHD,
-                        partitionKey = payload.flid,
-                        eventType = EventType.TOMBSTONE,
-                        stateVersion = current?.stateVersion ?: 0L,
-                        payloadJson = mapper.writeValueAsString(
-                            mapOf(
-                                "flid" to payload.flid,
-                                "stateVersion" to (current?.stateVersion ?: 0L),
-                                "deleted" to true,
-                            ),
-                        ),
-                        createdAt = createdAt,
-                    ),
+                    // C-9：删除通知只走 KAFKA:msg，schd 不再发 tombstone；
+                    // value 形态（"deleted":true 的 JSON）沿用现状，待 Q5 定稿
                     MsgEvent(
                         target = Targets.KAFKA_MSG,
                         partitionKey = payload.flid,