Schoolbord: image 0.0.25 gepind in app-versie 0.0.25

De energietoeslag zegt of het stookseizoen de afspraak raakt, en de
proeffactuur per persoon. Geen migratie. Digest gecontroleerd bij het
register; store-tests groen (110 en de release-bump-test).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

whatsnext-schoolbord/umbrel-app.yml

@@ -13,7 +13,7 @@ storage:
   dataRoot: data
 category: finance
 name: Schoolbord
-version: "0.0.24"
+version: "0.0.25"
 tagline: Tenants, agreements and monthly invoices for a small venue
 description: >-
   Schoolbord keeps the people of a small venue, the agreements made with them, and what follows
@@ -26,7 +26,13 @@ description: >-
   It has its own login and was made for Schooltje Boschoord; it speaks Dutch. Everything stays in your
   app folder on your Umbrel and goes along with your Umbrel backup.
 releaseNotes: >-
-  Brings a database step: make a backup first. New under Systeem, for every login: Eigen agenda, a
+  No database step. On Afspraken, the energy surcharge next to its switch now says whether the heating
+  season reaches the agreement at all ("geen toeslag: buiten het stookseizoen", or only in the season),
+  so the switch can simply stay on; the invoice already counted only the days in the season. New on
+  Personen and Afspraken: Proeffactuur, the invoice of a person for a month you choose, as invoicing
+  would make it, shown as a PDF and never stored or numbered. Coming from 0.0.23 or earlier, it also
+  brings the following, with a database step: make a backup first.
+  New under Systeem, for every login: Eigen agenda, a
   private link that puts the agenda in your own calendar app (Google, Apple, Outlook), with only the
   moments you are part of or the whole agenda. It is off until you turn it on, works without logging
   in, and "Nieuwe link" makes the old one stop at once; use the address from outside, not the one at