CREATE TABLE IF NOT EXISTS plugin_schichtuebergabe_notes (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  staff_id INTEGER NOT NULL,
  department_id INTEGER NULL,
  message TEXT NOT NULL,
  is_important INTEGER NOT NULL DEFAULT 0,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_plugin_schichtuebergabe_created ON plugin_schichtuebergabe_notes (created_at);
CREATE TABLE IF NOT EXISTS plugin_schichtuebergabe_reads (
  note_id INTEGER NOT NULL,
  staff_id INTEGER NOT NULL,
  read_at TEXT NOT NULL,
  PRIMARY KEY (note_id, staff_id)
)