Query
CREATE TABLE reminders (
entity_id TEXT PRIMARY KEY,
text TEXT NOT NULL,
due_at_iso TEXT NOT NULL,
recurrence_cron TEXT,
status TEXT NOT NULL CHECK (status IN ('active','snoozed','done','cancelled')),
last_fired_at TEXT,
done_at TEXT,
snoozed_until_iso TEXT,
created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ','now')),
updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ','now'))
)