feat: 新增/botlist假人名单管理，/botall按名单过滤

名单持久化到config/slsa-bot-list.json。名单非空时/botall只操作名单内假人，为空时操作所有。支持add/remove/clear/show/addall。

src/main/java/com/github/zly2006/carpetslsaddition/util/BotListManager.java

@@ -0,0 +1,101 @@
+package com.github.zly2006.carpetslsaddition.util;
+
+import com.github.zly2006.carpetslsaddition.ServerMain;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+import net.fabricmc.loader.api.FabricLoader;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+/**
+ * 假人名单管理器：维护一份"受控假人名字"列表，持久化到 config/slsa-bot-list.json。
+ *
+ * <p>用途：{@code /botlist add cute wazi} 把名字加入名单后，{@code /botall} 的操作范围
+ * 就限定为名单内的假人（名单为空时操作所有 SLS 假人）。
+ */
+public final class BotListManager {
+
+    private BotListManager() {}
+
+    private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
+
+    /** 名字列表（保序、去重）。 */
+    private static final Set<String> NAMES = new LinkedHashSet<>();
+
+    private static Path configPath;
+
+    private static Path path() {
+        if (configPath == null) {
+            configPath = FabricLoader.getInstance().getConfigDir().resolve("slsa-bot-list.json");
+        }
+        return configPath;
+    }
+
+    /** 加载名单（服务器启动时调用）。 */
+    public static void load() {
+        NAMES.clear();
+        Path p = path();
+        if (!Files.exists(p)) {
+            return;
+        }
+        try (Reader r = Files.newBufferedReader(p)) {
+            Set<String> loaded = GSON.fromJson(r, new TypeToken<LinkedHashSet<String>>() {}.getType());
+            if (loaded != null) {
+                NAMES.addAll(loaded);
+            }
+            ServerMain.LOGGER.info("[SLSA] loaded bot list: {} entries", NAMES.size());
+        } catch (Exception e) {
+            ServerMain.LOGGER.error("[SLSA] failed to load bot list", e);
+        }
+    }
+
+    /** 保存名单。 */
+    public static void save() {
+        Path p = path();
+        try {
+            Files.createDirectories(p.getParent());
+            try (Writer w = Files.newBufferedWriter(p)) {
+                GSON.toJson(NAMES, w);
+            }
+        } catch (IOException e) {
+            ServerMain.LOGGER.error("[SLSA] failed to save bot list", e);
+        }
+    }
+
+    public static boolean add(String name) {
+        boolean added = NAMES.add(name);
+        if (added) save();
+        return added;
+    }
+
+    public static boolean remove(String name) {
+        boolean removed = NAMES.remove(name);
+        if (removed) save();
+        return removed;
+    }
+
+    public static void clear() {
+        NAMES.clear();
+        save();
+    }
+
+    /** 返回名单快照。 */
+    public static Set<String> getNames() {
+        return new LinkedHashSet<>(NAMES);
+    }
+
+    public static boolean contains(String name) {
+        return NAMES.contains(name);
+    }
+
+    public static boolean isEmpty() {
+        return NAMES.isEmpty();
+    }
+}