CREATE TABLE IF NOT EXISTS payment_provider_instances (
    id BIGSERIAL PRIMARY KEY,
    provider_key VARCHAR(30) NOT NULL,
    name VARCHAR(100) NOT NULL DEFAULT '',
    config TEXT NOT NULL,
    supported_types VARCHAR(200) NOT NULL DEFAULT '',
    enabled BOOLEAN NOT NULL DEFAULT TRUE,
    sort_order INT NOT NULL DEFAULT 0,
    limits TEXT NOT NULL DEFAULT '',
    refund_enabled BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE INDEX IF NOT EXISTS idx_payment_provider_instances_provider_key ON payment_provider_instances(provider_key);
CREATE INDEX IF NOT EXISTS idx_payment_provider_instances_enabled ON payment_provider_instances(enabled);