feat: enforce friend add and curfew policies

server/admin_internal_config.go

@@ -196,6 +196,21 @@ func (c *adminInternalClient) SensitiveWords(tenantCode string) (*types.Sensitiv
 	return &result, nil
 }
 
+func (c *adminInternalClient) SecurityPolicy(tenantCode string) (*types.SecurityPolicy, error) {
+	var result types.SecurityPolicy
+	path := "/internal/im-config/tenants/" + url.PathEscape(strings.TrimSpace(tenantCode)) + "/security-policy"
+	if err := c.getJSON(path, nil, &result); err != nil {
+		return nil, err
+	}
+	if result.FriendDisabledPolicy == nil {
+		result.FriendDisabledPolicy = map[string]any{}
+	}
+	if result.CurfewRules == nil {
+		result.CurfewRules = []*types.MessageCurfewRule{}
+	}
+	return &result, nil
+}
+
 func (c *adminInternalClient) TenantLoginIPWhitelist(id types.TenantID) (*tenantLoginIPWhitelistConfig, error) {
 	if !id.IsValid() {
 		return nil, types.ErrMalformed