The "Phase D.1/D.2/D.3" comment scaffolding and the "Paddle webhook
will fill this in" references became actively misleading after D.3
landed — anyone reading the code would think referral conversion was
still pending. Also corrects a stale "Paddle" reference to "Stripe"
(we never shipped Paddle; ended up on Stripe after the Paddle → Polar
→ Stripe MoR onboarding pivot).
Pure docstring sweep, no behaviour change.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Lays the billing-prep spine before Paddle lands in D.3.
D.1 — referrals
- users.referral_code: unique 8-char URL-safe code (alphabet excludes the
ambiguous 0/O/1/I/L). Generated lazily on first /settings hit so existing
accounts pick one up without a backfill migration.
- users.referred_by_user_id + new referrals audit table (referrer,
referred, created_at, converted_at, credited_at). converted_at /
credited_at stay null until D.3 fills them via the Paddle webhook.
- POST /login accepts ?ref=<code>; the code rides on the signed
pending-verify cookie so it survives the GET → POST → /verify hop.
- /settings page: email, tier badge, referral code chip + invite link
with one-click copy, pending/converted/active-credits stats grid.
Settings nav link added to the top bar.
Reward shape: when the referred user makes their first paid Paddle
subscription, both they and the referrer get 50% off for 3 months.
(D.3 wires the actual credit application via the Paddle webhook.)
D.2 — paid-access gate
- users.credit_until: timestamp until which a free-tier account has
paid-tier access. Null = no credit. Populated by admin CLI now and the
D.3 webhook later.
- app.services.access exposes paid_status(user) → PaidStatus dataclass
(active / source / expires_at / days_remaining), is_paid_active() with
admin-bearer-token bypass, and a require_paid FastAPI dependency that
raises 402 Payment Required for free-tier callers.
- POST /api/analyze (portfolio AI commentary) gated behind require_paid.
- Settings page surfaces credit window when active ("free · credit · N
day(s) remaining (expires YYYY-MM-DD)") and the upgrade hint when not.
- Admin CLI: python -m app.cli {grant-credit,revoke-credit,show-status}.
grant-credit is idempotent — extends from max(now, current expiry) so
re-running the command never erodes an existing grant.
Migrations 0013 (referrals) and 0014 (credit_until). Tests cover the
paid-status truth table, code generation + normalisation, CLI argument
parsing, and the pending-cookie ref roundtrip (29 new tests).
