feat(scada): add project monitoring replay

resources/sql/005_metadata_project_configuration.sql

@@ -19,13 +19,18 @@ CREATE TABLE IF NOT EXISTS projects (
     gs_workspace VARCHAR(100) UNIQUE NOT NULL,
     map_extent JSONB,
     map_config JSONB NOT NULL DEFAULT '{}'::jsonb,
+    settings JSONB NOT NULL DEFAULT '{}'::jsonb,
     status VARCHAR(20) DEFAULT 'active' NOT NULL,
     created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
     updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
-    CONSTRAINT projects_status_check CHECK (status IN ('active', 'inactive', 'archived'))
+    CONSTRAINT projects_status_check CHECK (status IN ('active', 'inactive', 'archived')),
+    CONSTRAINT projects_settings_object_check CHECK (jsonb_typeof(settings) = 'object')
 );
 
 ALTER TABLE projects ADD COLUMN IF NOT EXISTS map_config JSONB NOT NULL DEFAULT '{}'::jsonb;
+ALTER TABLE projects ADD COLUMN IF NOT EXISTS settings JSONB NOT NULL DEFAULT '{}'::jsonb;
+COMMENT ON COLUMN projects.settings IS
+    '项目级通用配置（JSON 对象，不存放密钥）；scada_monitoring_interval_seconds 为监测任务间隔秒数。';
 COMMENT ON COLUMN projects.map_config IS
     '项目级地图配置（JSON）；place_search 保存地名搜索启用状态、服务商、行政区编码及区域名称；保留既有图例与坐标参考配置。';