-- 002_push_subscriptions.sql
-- Push notification subscriptions storage

CREATE TABLE IF NOT EXISTS push_subscriptions (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    endpoint TEXT NOT NULL UNIQUE,
    p256dh TEXT NOT NULL,
    auth TEXT NOT NULL,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- Index for faster lookups by endpoint
CREATE INDEX IF NOT EXISTS idx_push_subscriptions_endpoint ON push_subscriptions(endpoint);