✨(backend) add a flexible JSON field to store recording options

Using a JSON field allows iterating on recording data without running a new
migration each time additional options or metadata need to be tracked.

This comes with trade-offs, notably weaker data validation and less clarity on
which data can be stored alongside a recording.

In the long run, this JSON field can be refactored into dedicated columns once
the feature and data model have stabilized.

src/backend/locale/fr_FR/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-12-17 15:12+0000\n"
+"POT-Creation-Date: 2025-12-29 15:15+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: antoine.lebaud@mail.numerique.gouv.fr\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -315,93 +315,97 @@ msgstr "Mode d'enregistrement"
 msgid "Defines the mode of recording being called."
 msgstr "Définit le mode d'enregistrement appelé."
 
-#: core/models.py:584
+#: core/models.py:583 core/models.py:584
+msgid "Recording options"
+msgstr "Options d'enregistrement"
+
+#: core/models.py:590
 msgid "Recording"
 msgstr "Enregistrement"
 
-#: core/models.py:585
+#: core/models.py:591
 msgid "Recordings"
 msgstr "Enregistrements"
 
-#: core/models.py:693
+#: core/models.py:699
 msgid "Recording/user relation"
 msgstr "Relation enregistrement/utilisateur"
 
-#: core/models.py:694
+#: core/models.py:700
 msgid "Recording/user relations"
 msgstr "Relations enregistrement/utilisateur"
 
-#: core/models.py:700
+#: core/models.py:706
 msgid "This user is already in this recording."
 msgstr "Cet utilisateur est déjà dans cet enregistrement."
 
-#: core/models.py:706
+#: core/models.py:712
 msgid "This team is already in this recording."
 msgstr "Cette équipe est déjà dans cet enregistrement."
 
-#: core/models.py:712
+#: core/models.py:718
 msgid "Either user or team must be set, not both."
 msgstr "Soit l'utilisateur, soit l'équipe doit être défini, pas les deux."
 
-#: core/models.py:729
+#: core/models.py:735
 msgid "Create rooms"
 msgstr "Créer des salles"
 
-#: core/models.py:730
+#: core/models.py:736
 msgid "List rooms"
 msgstr "Lister les salles"
 
-#: core/models.py:731
+#: core/models.py:737
 msgid "Retrieve room details"
 msgstr "Afficher les détails d’une salle"
 
-#: core/models.py:732
+#: core/models.py:738
 msgid "Update rooms"
 msgstr "Mettre à jour les salles"
 
-#: core/models.py:733
+#: core/models.py:739
 msgid "Delete rooms"
 msgstr "Supprimer les salles"
 
-#: core/models.py:746
+#: core/models.py:752
 msgid "Application name"
 msgstr "Nom de l’application"
 
-#: core/models.py:747
+#: core/models.py:753
 msgid "Descriptive name for this application."
 msgstr "Nom descriptif de cette application."
 
-#: core/models.py:757
+#: core/models.py:763
 msgid "Hashed on Save. Copy it now if this is a new secret."
 msgstr ""
 "Haché lors de l’enregistrement. Copiez-le maintenant s’il s’agit d’un "
 "nouveau secret."
 
-#: core/models.py:768
+#: core/models.py:774
 msgid "Application"
 msgstr "Application"
 
-#: core/models.py:769
+#: core/models.py:775
 msgid "Applications"
 msgstr "Applications"
 
-#: core/models.py:792
+#: core/models.py:798
 msgid "Enter a valid domain"
 msgstr "Saisissez un domaine valide"
 
-#: core/models.py:795
+#: core/models.py:801
 msgid "Domain"
 msgstr "Domaine"
 
-#: core/models.py:796
+#: core/models.py:802
 msgid "Email domain this application can act on behalf of."
 msgstr "Domaine de messagerie au nom duquel cette application peut agir."
 
-#: core/models.py:808
+#: core/models.py:814
 msgid "Application domain"
 msgstr "Domaine d’application"
 
-#: core/models.py:809
+#: core/models.py:815
 msgid "Application domains"
 msgstr "Domaines d’application"