feat: add tombstone logging for deleted duplicate links

Author: sakethpathike

src/main/kotlin/com/sakethh/linkora/data/repository/LinksImplementation.kt

@@ -15,10 +15,12 @@ import com.sakethh.linkora.utils.Result
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.encodeToJsonElement
-import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
-import org.jetbrains.exposed.sql.transactions.TransactionManager
+import org.jetbrains.exposed.sql.and
+import org.jetbrains.exposed.sql.deleteWhere
+import org.jetbrains.exposed.sql.insertAndGetId
 import org.jetbrains.exposed.sql.transactions.transaction
+import org.jetbrains.exposed.sql.update
 import java.time.Instant
 
 class LinksImplementation : LinksRepository {
@@ -395,6 +397,11 @@ class LinksImplementation : LinksRepository {
                         deleteDuplicateLinksDTO.linkIds.toString().substringBefore("]").substringAfter("[").trim()
                     })"
                 )
+                TombStoneHelper.insert(
+                    payload = Json.encodeToString(deleteDuplicateLinksDTO),
+                    operation = LinkRoute.DELETE_DUPLICATE_LINKS.name,
+                    deletedAt = eventTimestamp
+                )
             }
             Result.Success(
                 response = TimeStampBasedResponse(