feat(content): 新增内容类型与首页分类 feed

sql/migrate-k88-drama-type.sql

@@ -0,0 +1,2 @@
+ALTER TABLE drama ADD COLUMN IF NOT EXISTS drama_type VARCHAR(16) NOT NULL DEFAULT 'LIVE';
+COMMENT ON COLUMN drama.drama_type IS '内容类型：ANIME=漫剧，LIVE=真人剧';

sql/schema.sql

@@ -169,6 +169,7 @@ CREATE TABLE IF NOT EXISTS drama (
   cover_url            VARCHAR(512)  NOT NULL DEFAULT '',
   horizontal_cover_url VARCHAR(512)  NOT NULL DEFAULT '',
   language             VARCHAR(16)   NOT NULL DEFAULT 'zh-CN',
+  drama_type           VARCHAR(16)   NOT NULL DEFAULT 'LIVE',
   total_episodes       INT           NOT NULL DEFAULT 0,
   free_episodes        INT           NOT NULL DEFAULT 3,
   unlock_coin          INT           NOT NULL DEFAULT 0,