feat: tenant content publish

backend/database/migrations/20251225123000_contents_summary_tags.sql

@@ -0,0 +1,21 @@
+-- +goose Up
+-- +goose StatementBegin
+-- contents：补齐“简介/标签”字段，用于内容发布与列表展示
+ALTER TABLE contents
+    ADD COLUMN IF NOT EXISTS summary varchar(256) NOT NULL DEFAULT '',
+    ADD COLUMN IF NOT EXISTS tags jsonb NOT NULL DEFAULT '[]'::jsonb;
+
+COMMENT ON COLUMN contents.summary IS '简介：用于列表/卡片展示的短文本；建议 <= 256 字符（由业务校验）';
+COMMENT ON COLUMN contents.tags IS '标签：JSON 数组（字符串列表）；用于分类/检索与聚合展示';
+
+CREATE INDEX IF NOT EXISTS ix_contents_tenant_tags ON contents(tenant_id);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP INDEX IF EXISTS ix_contents_tenant_tags;
+ALTER TABLE contents
+    DROP COLUMN IF EXISTS tags,
+    DROP COLUMN IF EXISTS summary;
+-- +goose StatementEnd
+