CREATE TABLE IF NOT EXISTS notes (
  id TEXT PRIMARY KEY,
  user_id TEXT NOT NULL,
  title TEXT NOT NULL DEFAULT '',
  content TEXT NOT NULL DEFAULT '',
  drawing TEXT,
  font_size TEXT,
  font_family TEXT,
  text_color TEXT,
  created_at INTEGER NOT NULL,
  updated_at INTEGER NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_notes_user ON notes(user_id, updated_at DESC);

CREATE TABLE IF NOT EXISTS shares (
  token TEXT PRIMARY KEY,
  note_id TEXT NOT NULL,
  user_id TEXT NOT NULL,
  created_at INTEGER NOT NULL
);