Hash negative zone IDs for warehouse records without failing

Hasher.encode indexes arrays with the number, so a negative static zone
ID (World Boot Plan 2.4) throws. encryptObjectID hashes a negative ID as
the pair (0, -id), which no single positive ID can produce; positive IDs
hash as before. Static zones and PvP records use it; mine records read
the zone's stored hash.

Value changes: none until static zones take negative IDs.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/db/archive/PvpRecord.java

@@ -280,7 +280,7 @@ public class PvpRecord extends DataRecord {
         outStatement.setString(7, DataWarehouse.hasher.encrypt(victimGuild.getNation().getObjectUUID()));
         outStatement.setInt(8, this.victim.getLevel());
 
-        outStatement.setString(9, DataWarehouse.hasher.encrypt(zone.getObjectUUID()));
+        outStatement.setString(9, DataWarehouse.hasher.encryptObjectID(zone.getObjectUUID()));
         outStatement.setString(10, zone.zoneName);
         outStatement.setFloat(11, this.location.getX());
         outStatement.setFloat(12, -this.location.getZ()); // flip sign on 'y' coordinate

src/engine/objects/Zone.java

@@ -135,7 +135,7 @@ public class Zone extends AbstractWorldObject {
             zone.max_level = MACRO_ZONE_MAX_LEVEL;
         }
 
-        zone.hash = DataWarehouse.hasher.encrypt(zone.getObjectUUID());
+        zone.hash = DataWarehouse.hasher.encryptObjectID(zone.getObjectUUID());
 
         return zone;
     }

src/engine/util/Hasher.java

@@ -245,6 +245,16 @@ public class Hasher {
         return encode(numbers, alphabet_, salt_, minHashLength_);
     }
 
+    // encode() fails on negative numbers, and static world objects have negative IDs. A static ID hashes as
+    // the pair (0, -id), which no single positive ID can produce.
+    public String encryptObjectID(long objectID) {
+
+        if (objectID < 0)
+            return encrypt(0, -objectID);
+
+        return encrypt(objectID);
+    }
+
     public long[] decrypt(String hash) {
         return decode(hash);
     }