fix(servers): 主人可放弃服务器、管理员可删除服务器，由 reaper 归档世界后释放或移除

plugins/velocity/src/main/java/best/lolicon/felis/velocity/WaitingRouter.java

@@ -651,6 +651,16 @@ public final class WaitingRouter {
                                 NamedTextColor.YELLOW));
                         return;
                     }
+                    if ("server_retiring".equals(e.errorCode())) {
+                        // The owner gave the server up or an admin is deleting it: it
+                        // stays down until the reaper archives it, unless that is
+                        // cancelled in the panel, so there is nothing to wait for.
+                        player.sendMessage(Component.text(
+                                zh ? "「" + serverName + "」已被放弃或正在删除，不能启动。"
+                                   : "« " + serverName + " » has been given up or is being deleted, so it can't be started.",
+                                NamedTextColor.YELLOW));
+                        return;
+                    }
                     if ("start_failed".equals(e.errorCode())) {
                         // The last start failed with its retries spent. The join does
                         // not buy another round of them, so there is nothing to wait for.

plugins/velocity/test/best/lolicon/felis/velocity/WaitingRouterTest.java

@@ -226,6 +226,7 @@ public final class WaitingRouterTest {
                 {"ownerOnly, not the owner", "You're not allowed to start « gamma »", null},
                 {"retries spent", "« gamma » failed to start and its automatic retries are spent", null},
                 {"409 maintenance_in_progress", "« gamma » is under maintenance", null},
+                {"409 server_retiring", "« gamma » has been given up or is being deleted", null},
                 {"409 conflict", "Couldn't start « gamma » right now", "wake gamma failed (status=409)"},
                 {"503 at_capacity", "The cluster is at capacity right now", null},
                 {"503 unavailable", "Couldn't start « gamma » right now", "wake gamma failed (status=503)"},