Add Column
Current Schema
CREATE TABLE assignments (
id TEXT PRIMARY KEY,
child_id TEXT NOT NULL,
parent_id TEXT NOT NULL,
status TEXT DEFAULT 'pending'
CHECK(status IN ('pending','pushed','correcting','completed')),
source_type TEXT DEFAULT 'photo'
CHECK(source_type IN ('photo','voice','screenshot','manual')),
note TEXT DEFAULT '',
item_count INTEGER DEFAULT 0,
pushed_at DATETIME,
created_at DATETIME DEFAULT (datetime('now')),
updated_at DATETIME DEFAULT (datetime('now'))
)