CREATE TABLE IF NOT EXISTS quote_comparisons ( tenant_key TEXT NOT NULL, comparison_id TEXT NOT NULL, recommendation_vendor TEXT NOT NULL, weighted_score NUMERIC(10,4) NOT NULL, payload JSONB NOT NULL, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), PRIMARY KEY (tenant_key, comparison_id) ); CREATE INDEX IF NOT EXISTS quote_comparisons_tenant_updated_idx ON quote_comparisons (tenant_key, updated_at DESC); CREATE TABLE IF NOT EXISTS quote_execution_receipts ( tenant_key TEXT NOT NULL, receipt_id UUID NOT NULL, comparison_id TEXT NOT NULL, tool_name TEXT NOT NULL, ok BOOLEAN NOT NULL, payload JSONB NOT NULL, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), PRIMARY KEY (tenant_key, receipt_id) ); CREATE INDEX IF NOT EXISTS quote_execution_receipts_lookup_idx ON quote_execution_receipts (tenant_key, comparison_id, created_at DESC);