refactor: 修复潜在bug、补全许可声明、添加类型注解、同步文档

method_executor.rb

@@ -43,6 +43,10 @@ class MethodExecutor
                    end
   @@logger.progname = "MineSentinel"
 
+  # @param level [String] "info" | "warn" | "error" | "debug"
+  # @param module_name [String]
+  # @param message [String]
+  # @return [void]
   def self.record(level, module_name, message)
     case level
     when "info"
@@ -58,6 +62,7 @@ class MethodExecutor
     end
   end
 
+  # @return [void]
   def self.reset_minecraft_server
 
     self.record("info", "reset", "Attempt ##{@@rst_counter + 1} to reset Minecraft server.")
@@ -67,6 +72,7 @@ class MethodExecutor
                   "Tried #{RST_COUNTS_LIMIT} times and failed, now I'll idle until server is manually restarted.")
       while true
         sleep 10
+        SystemdNotifier.notify("WATCHDOG=1") if defined?(SystemdNotifier)
         if ServerStatusDetector::MinecraftServer.self_diag[:type] == true
           self.record("info", "reset", "Server recovered! Resuming normal monitoring.")
           @@rst_counter = 0