Advertise the jackpot that will actually be paid (B-65)

participant_count and jackpot_sats were computed over every round_participants
row, while the draw only picks from confirmed participants and the payout only
spends their sats. So the advertised jackpot could exceed the one paid out, and a
player whose bet was later abandoned appeared in the count and then vanished
again.

Counting only confirmed rows would have fixed the arithmetic and broken something
else: the player who just bet would see neither themselves nor their money for a
whole block. So this is the same confirmed/in-flight split the balance already
exposes (balance_sats vs pending_balance_sats): participant_count and
jackpot_sats are now the confirmed, authoritative figures, and
pending_participant_count/pending_jackpot_sats/has_pending_bets report what is in
flight — inclusive figures, not deltas, matching the balance pair's convention.

/'s round card shows the confirmed numbers big and the difference as an amber
"+N in attesa" suffix, reusing .balance-pending's colour for the same "not
settled yet" meaning. The two new spans render from server data through t(), so
they carry no data-i18n and onLanguageChange() repaints them from the last
response — the one-mechanism-per-element rule. Both strings are in all 7
languages.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app/static/style.css

@@ -215,6 +215,12 @@ button.link:hover, a.link:hover { filter: none; color: var(--color-foreground);
 .balance-confirmed { color: var(--color-success); }
 .balance-pending { color: var(--color-primary); }
 
+/* The in-flight part of the round's own figures (B-65): the players/jackpot next
+   to it are the confirmed ones the draw and the payout will actually use, and this
+   is what has been bet but hasn't confirmed yet. Same amber as .balance-pending,
+   for the same "not settled" meaning. */
+.pending-suffix { color: var(--color-primary); font-size: 0.8rem; font-weight: 600; }
+
 .icon { width: 16px; height: 16px; flex-shrink: 0; }
 
 .dash-panel { display: none; }