Add party name retrieval: implemented PartyMapper for database queries, updated ChatService with new getPartyName method, and extended /chat/party/{id}/name API endpoint.

backend/src/main/java/com/alttd/altitudeweb/controllers/chat/ChatController.java

@@ -40,4 +40,17 @@ public class ChatController implements ChatApi {
                 .map(ResponseEntity::ok)
                 .orElse(ResponseEntity.notFound().build());
     }
+
+    @Override
+    public ResponseEntity<String> getPartyName(String id) {
+        int partyId;
+        try {
+            partyId = Integer.parseInt(id);
+        } catch (NumberFormatException e) {
+            return ResponseEntity.badRequest().build();
+        }
+        return chatService.getPartyName(partyId)
+                .map(ResponseEntity::ok)
+                .orElse(ResponseEntity.notFound().build());
+    }
 }

backend/src/main/java/com/alttd/altitudeweb/services/chat/ChatService.java

@@ -2,10 +2,10 @@ package com.alttd.altitudeweb.services.chat;
 
 import com.alttd.altitudeweb.controllers.chat.ChatMessage;
 import com.alttd.altitudeweb.controllers.chat.ChatMessageMapper;
-import com.alttd.altitudeweb.controllers.chat.ChatMessageType;
 import com.alttd.altitudeweb.database.Databases;
 import com.alttd.altitudeweb.database.chat.ChatLogMapper;
 import com.alttd.altitudeweb.database.chat.NicknameMapper;
+import com.alttd.altitudeweb.database.chat.PartyMapper;
 import com.alttd.altitudeweb.database.luckperms.UUIDUsernameMapper;
 import com.alttd.altitudeweb.model.PermissionClaimDto;
 import com.alttd.altitudeweb.model.PlayerNameDto;
@@ -163,4 +163,9 @@ public class ChatService {
         return Optional.of(playerNameDto);
     }
 
+    public Optional<String> getPartyName(int id) {
+        return Connection.getConnection(Databases.CHAT)
+                .runQueryWithResult(sqlSession -> sqlSession.getMapper(PartyMapper.class).getPartyName(id));
+    }
+
 }