feat: 增加分类权限控制

- 新增角色分类授权模型与超级管理员配置接口

- 接入助手、插件、工作流、知识库、素材的分类可见性过滤

- 增加角色页分类权限树与插件多分类可见性支持

easyflow-modules/easyflow-module-system/src/main/java/tech/easyflow/system/enums/CategoryResourceType.java

@@ -0,0 +1,40 @@
+package tech.easyflow.system.enums;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+import java.util.stream.Collectors;
+
+public enum CategoryResourceType {
+
+    BOT("BOT"),
+    PLUGIN("PLUGIN"),
+    WORKFLOW("WORKFLOW"),
+    KNOWLEDGE("KNOWLEDGE"),
+    RESOURCE("RESOURCE");
+
+    private final String code;
+
+    CategoryResourceType(String code) {
+        this.code = code;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public static CategoryResourceType from(String code) {
+        if (code == null) {
+            throw new IllegalArgumentException("resourceType不能为空");
+        }
+        String normalized = code.trim().toUpperCase(Locale.ROOT);
+        return Arrays.stream(values())
+                .filter(item -> item.code.equals(normalized))
+                .findFirst()
+                .orElseThrow(() -> new IllegalArgumentException("不支持的resourceType: " + code));
+    }
+
+    public static List<String> allCodes() {
+        return Arrays.stream(values()).map(CategoryResourceType::getCode).collect(Collectors.toList());
+    }
+}

easyflow-modules/easyflow-module-system/src/main/java/tech/easyflow/system/enums/CategoryScopeMode.java

@@ -0,0 +1,31 @@
+package tech.easyflow.system.enums;
+
+import java.util.Arrays;
+import java.util.Locale;
+
+public enum CategoryScopeMode {
+
+    ALL("ALL"),
+    CUSTOM("CUSTOM");
+
+    private final String code;
+
+    CategoryScopeMode(String code) {
+        this.code = code;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public static CategoryScopeMode from(String code) {
+        if (code == null) {
+            return CUSTOM;
+        }
+        String normalized = code.trim().toUpperCase(Locale.ROOT);
+        return Arrays.stream(values())
+                .filter(item -> item.code.equals(normalized))
+                .findFirst()
+                .orElseThrow(() -> new IllegalArgumentException("不支持的scopeMode: " + code));
+    }
+}