Artifact: Story-Point Estimate — Checkout Redesign

Aurora Checkout Redesign -- story-point estimate -- exercises co-05.

Reference story: 1.2 PayPal adapter = 5 points (near-identical to a prior integration the team has already built).

Backlog item	Points	Reasoning relative to the reference (1.2 = 5)
1.1 Stripe adapter	5	Same shape of work as the reference story.
1.2 PayPal adapter (reference)	5	The reference story itself.
1.3 Apple Pay adapter	3	Smaller -- reuses the adapter interface the first two establish.
2.1 Cart persistence rework	8	Bigger -- touches shared state across the whole checkout flow.
2.2 Order summary UI	3	Similar size to the smaller adapter story.
2.3 Order confirmation email	2	Smallest item in the backlog.
3.1 Checkout E2E test suite	8	Bigger -- spans all three payment paths.
3.2 Load test	5	Same rough size as an adapter story.
3.3 Feature-flag rollout plan	2	Small, well-understood mechanism.
Total	41