* feat(admin): add a Billing tab for subscriptions and sales
The admin can now follow subscriptions and sales without opening Stripe:
- Summary tiles: active subscriptions (monthly/annual), MRR with annual
plans counted as 1/12, sales and revenue for 7d/30d/90d/12m/all time,
all-time sales, subscriptions cancelling at period end, and refunds
and disputes.
- A stacked chart of sales per day, week or month by plan family.
- A by-plan table: active grants, period and all-time sales and revenue.
- A paginated list of grants with plan, Stripe status, active/expired/
revoked and user filters, linked to the admin user, repository or
conference.
- One row of webhook health: pending, failed, oldest pending event, last
error and unreviewed payment reversals.
A sale is one checkout or subscription, so a paper pack's three grants
count once. Revenue is each sale's Stripe list price, resolved once per
price and cached in memory. Currencies are never added together. Without
Stripe the page shows counts and marks revenue as unavailable.
GET /api/admin/billing/summary and /grants sit behind the admin check.
Grants get a { purchasedAt, _id } index for the list.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix: preserve payment history in admin billing totals
* fix: scope billing history and preserve original sale prices
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
The UI was uneven: the home page looked finished, but app pages used three
different display typefaces, the anonymize flow changed frame between steps,
and the dashboard, explorer and admin screens each had their own controls,
status colours and edge-case handling.
Make every screen follow one system: shared page header, grid, buttons,
filters and status colours; a repository picker and step trail on anonymize;
a "What reviewers will see" preview of the actual reviewer page; consistent
file headers and viewers for every file type; truthful admin charts and
tables. Fold the accumulated override blocks back into style.css (22%
smaller, no visual change).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Thomas Durieux