Complete Stage 1: Core Game Loop

- Add GameState enum (LOBBY, ROLE_ASSIGN, IN_GAME, ENDING)
- Add Phase interface with enter/tick/exit/isComplete
- Add GameSession with tick-based phase machine
- Add GameEventBus for internal events
- Add GameManager for session lifecycle
- Add all phases: LobbyPhase, RoleAssignPhase, GameplayPhase, EndgamePhase
- Add role assignment: RoleAssigner, RoleQueue, SpawnPosition
- Add BasePlayer, Survivor, Killer, PlayerState
- Add DBDCommand with /dbd join/leave/create/forcestart/stop
- Update mdbd.java with GameManager and command registration
- Add command definition to paper-plugin.yml
- Mark Stage 1 complete in PLAN.md

src/main/resources/paper-plugin.yml

@@ -9,6 +9,12 @@ load: POSTWORLD
 
 authors: [ loki ]
 
+commands:
+  dbd:
+    description: "Главная команда DBD плагина"
+    usage: "/dbd <join|leave|create|forcestart|stop>"
+    permission: mdbd.player
+
 permissions:
   mdbd.admin:
     description: "Полный доступ к админ-командам плагина"