Add Column
Current Schema
CREATE TABLE textbook_pages (
id INTEGER PRIMARY KEY AUTOINCREMENT,
lesson_id INTEGER NOT NULL REFERENCES textbook_lessons(id),
page_number INTEGER NOT NULL,
-- 教材页码
image_path TEXT,
-- 扫描图本地路径
image_url TEXT,
-- 公网URL
page_type TEXT DEFAULT 'content',
-- content/vocab/exercise/cover
created_at DATETIME DEFAULT (datetime('now'))
)