fix(web): une erreur sur un point JSON ne renvoie plus une page HTML

STD-09, trouve en recroisant l'audit anterieur -- celui mene sur le miroir
GitHub, jamais repasse depuis qu'on a decouvert que ce n'etait pas la bonne
source.

Sept gestionnaires d'erreur portaient chacun leur copie d'une liste de
prefixes d'URL decidant "JSON ou page HTML". Les copies avaient derive --
trois testaient /users/coach-availability, quatre non -- et toutes
manquaient les memes points. Un fetch() qui recoit une page d'erreur HTML
leve en la parsant : sur le calendrier, les listes de selections et
d'equipes restaient vides, sans message dans la page et sans rien dans le
journal.

Deux choses apprises en ecrivant le test, aucune n'etait dans le constat.

L'approche par prefixe ne pouvait pas etre reparee. Trois des seize vues
JSON sont a des chemins qu'aucun prefixe ne distingue des pages HTML
voisines -- /matches/<id>/toggle-presence/<id> et ses deux cousins, que les
gabarits appellent justement en fetch(). Les vues se declarent donc
elles-memes (@json_endpoint, app/api.py), et un test parcourt la carte des
URL pour verifier qu'aucune vue appelant jsonify n'a ete oubliee.

Et surtout : @login_required n'atteint jamais le gestionnaire 401.
Flask-Login intercepte avant et redirige. Les seize points JSON repondaient
donc a une session expiree par une 302 vers un formulaire HTML, quoi que
dise la liste de prefixes. Reecrire la liste seule aurait eu l'air d'un
correctif sans rien changer.

Au passage, le message flash de ce gestionnaire etait la seule chaine de
l'application qui n'avait jamais ete traduite.

Co-Authored-By: Claude Opus 5 <[email protected]>

app/translations/en/LC_MESSAGES/messages.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: team-tryouts VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2026-08-11 15:25-0400\n"
+"POT-Creation-Date: 2026-08-11 18:57-0400\n"
 "PO-Revision-Date: 2026-08-07 20:22-0400\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: en\n"
@@ -19,6 +19,10 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.18.0\n"
 
+#: app/app.py:555
+msgid "Please log in to access this page."
+msgstr "Please log in to access this page."
+
 #: app/forms.py:37 app/routes/auth.py:224 app/routes/auth.py:374
 #: app/routes/users/contracts.py:96
 #, python-format
@@ -199,11 +203,11 @@ msgstr ""
 msgid "Your registration could not be processed. Please try again."
 msgstr "Your registration could not be processed. Please try again."
 
-#: app/routes/auth.py:388 app/routes/users/accounts.py:308
+#: app/routes/auth.py:388 app/routes/users/accounts.py:325
 msgid "Username already exists."
 msgstr "Username already exists."
 
-#: app/routes/auth.py:392 app/routes/users/accounts.py:312
+#: app/routes/auth.py:392 app/routes/users/accounts.py:329
 msgid "Email already registered."
 msgstr "Email already registered."
 
@@ -275,9 +279,9 @@ msgstr "Evaluation submitted successfully!"
 msgid "Evaluation updated!"
 msgstr "Evaluation updated!"
 
-#: app/routes/evaluations.py:210 app/routes/teams.py:270
-#: app/routes/teams.py:311 app/routes/teams.py:352 app/routes/teams.py:377
-#: app/routes/teams.py:402 app/routes/teams.py:437 app/routes/tryouts.py:437
+#: app/routes/evaluations.py:210 app/routes/teams.py:289
+#: app/routes/teams.py:330 app/routes/teams.py:371 app/routes/teams.py:396
+#: app/routes/teams.py:421 app/routes/teams.py:456 app/routes/tryouts.py:437
 #: app/routes/tryouts.py:453 app/routes/tryouts.py:473
 #: app/routes/tryouts.py:512 app/routes/tryouts.py:548
 #: app/routes/tryouts.py:567
@@ -288,183 +292,183 @@ msgstr "Permission denied."
 msgid "That language is not available."
 msgstr "That language is not available."
 
-#: app/routes/matches.py:361
+#: app/routes/matches.py:364
 msgid "You do not have permission to schedule matches for this tryout."
 msgstr "You do not have permission to schedule matches for this tryout."
 
-#: app/routes/matches.py:365 app/routes/matches.py:445
+#: app/routes/matches.py:368 app/routes/matches.py:448
 msgid "This tryout has ended. Matches can no longer be created or modified."
 msgstr "This tryout has ended. Matches can no longer be created or modified."
 
-#: app/routes/matches.py:427
+#: app/routes/matches.py:430
 msgid "Match scheduled successfully!"
 msgstr "Match scheduled successfully!"
 
-#: app/routes/matches.py:441 app/routes/team_matches.py:211
+#: app/routes/matches.py:444 app/routes/team_matches.py:212
 msgid "You do not have permission to edit this match."
 msgstr "You do not have permission to edit this match."
 
-#: app/routes/matches.py:536 app/routes/team_matches.py:241
+#: app/routes/matches.py:539 app/routes/team_matches.py:242
 msgid "Match updated successfully!"
 msgstr "Match updated successfully!"
 
-#: app/routes/matches.py:571 app/routes/team_matches.py:256
+#: app/routes/matches.py:575 app/routes/team_matches.py:257
 msgid "You do not have permission to delete this match."
 msgstr "You do not have permission to delete this match."
 
-#: app/routes/matches.py:574
+#: app/routes/matches.py:578
 msgid "This tryout has ended. Matches can no longer be deleted."
 msgstr "This tryout has ended. Matches can no longer be deleted."
 
-#: app/routes/matches.py:587 app/routes/team_matches.py:260
+#: app/routes/matches.py:591 app/routes/team_matches.py:261
 msgid "Match deleted successfully."
 msgstr "Match deleted successfully."
 
-#: app/routes/team_matches.py:104
+#: app/routes/team_matches.py:105
 msgid "You do not have permission to schedule matches for this team."
 msgstr "You do not have permission to schedule matches for this team."
 
-#: app/routes/team_matches.py:196
+#: app/routes/team_matches.py:197
 #, python-format
 msgid "Team match \"%(title)s\" scheduled successfully!"
 msgstr "Team match \"%(title)s\" scheduled successfully!"
 
-#: app/routes/teams.py:40
+#: app/routes/teams.py:41
 msgid "Use My Team(s) to view your teams."
 msgstr "Use My Team(s) to view your teams."
 
-#: app/routes/teams.py:43
+#: app/routes/teams.py:44
 msgid "You do not have permission to view teams."
 msgstr "You do not have permission to view teams."
 
-#: app/routes/teams.py:70
+#: app/routes/teams.py:71
 msgid "This page is for players."
 msgstr "This page is for players."
 
-#: app/routes/teams.py:123
+#: app/routes/teams.py:124
 msgid "You do not have permission to create teams."
 msgstr "You do not have permission to create teams."
 
-#: app/routes/teams.py:131 app/routes/teams.py:176
+#: app/routes/teams.py:132 app/routes/teams.py:177
 msgid "Team name is required."
 msgstr "Team name is required."
 
-#: app/routes/teams.py:136 app/routes/teams.py:181
+#: app/routes/teams.py:137 app/routes/teams.py:182
 #, python-format
 msgid "Team \"%(name)s\" already exists."
 msgstr "Team \"%(name)s\" already exists."
 
-#: app/routes/teams.py:158
+#: app/routes/teams.py:159
 #, python-format
 msgid "Team \"%(name)s\" created successfully!"
 msgstr "Team \"%(name)s\" created successfully!"
 
-#: app/routes/teams.py:168
+#: app/routes/teams.py:169
 msgid "You do not have permission to edit this team."
 msgstr "You do not have permission to edit this team."
 
-#: app/routes/teams.py:219
+#: app/routes/teams.py:220
 #, python-format
 msgid "Team \"%(name)s\" updated successfully!"
 msgstr "Team \"%(name)s\" updated successfully!"
 
-#: app/routes/teams.py:228
+#: app/routes/teams.py:248
 msgid "You do not have permission to delete teams."
 msgstr "You do not have permission to delete teams."
 
-#: app/routes/teams.py:260
+#: app/routes/teams.py:279
 #, python-format
 msgid "Team \"%(name)s\" deleted successfully."
 msgstr "Team \"%(name)s\" deleted successfully."
 
-#: app/routes/teams.py:275
+#: app/routes/teams.py:294
 msgid "Please select a coach."
 msgstr "Please select a coach."
 
-#: app/routes/teams.py:280
+#: app/routes/teams.py:299
 msgid "Only coaches can be assigned as coach."
 msgstr "Only coaches can be assigned as coach."
 
-#: app/routes/teams.py:286
+#: app/routes/teams.py:305
 #, python-format
 msgid "%(username)s is already a coach of %(name)s."
 msgstr "%(username)s is already a coach of %(name)s."
 
-#: app/routes/teams.py:299
+#: app/routes/teams.py:318
 #, python-format
 msgid "%(username)s added as coach of %(name)s."
 msgstr "%(username)s added as coach of %(name)s."
 
-#: app/routes/teams.py:316
+#: app/routes/teams.py:335
 msgid "Please select a manager."
 msgstr "Please select a manager."
 
-#: app/routes/teams.py:321
+#: app/routes/teams.py:340
 msgid "Only managers can be assigned as manager."
 msgstr "Only managers can be assigned as manager."
 
-#: app/routes/teams.py:327
+#: app/routes/teams.py:346
 #, python-format
 msgid "%(username)s is already a manager of %(name)s."
 msgstr "%(username)s is already a manager of %(name)s."
 
-#: app/routes/teams.py:340
+#: app/routes/teams.py:359
 #, python-format
 msgid "%(username)s added as manager of %(name)s."
 msgstr "%(username)s added as manager of %(name)s."
 
-#: app/routes/teams.py:367
+#: app/routes/teams.py:386
 #, python-format
 msgid "Coach removed from %(name)s."
 msgstr "Coach removed from %(name)s."
 
-#: app/routes/teams.py:392
+#: app/routes/teams.py:411
 #, python-format
 msgid "Manager removed from %(name)s."
 msgstr "Manager removed from %(name)s."
 
-#: app/routes/teams.py:408 app/routes/tryouts.py:477 app/routes/tryouts.py:578
+#: app/routes/teams.py:427 app/routes/tryouts.py:477 app/routes/tryouts.py:578
 msgid "Please select a player."
 msgstr "Please select a player."
 
-#: app/routes/teams.py:413
+#: app/routes/teams.py:432
 msgid "Can only assign players to teams."
 msgstr "Can only assign players to teams."
 
-#: app/routes/teams.py:419
+#: app/routes/teams.py:438
 #, python-format
 msgid "%(username)s is already on %(name)s."
 msgstr "%(username)s is already on %(name)s."
 
-#: app/routes/teams.py:427
+#: app/routes/teams.py:446
 #, python-format
 msgid "%(username)s added to %(name)s!"
 msgstr "%(username)s added to %(name)s!"
 
-#: app/routes/teams.py:444 app/routes/teams.py:517
+#: app/routes/teams.py:463 app/routes/teams.py:537
 #, python-format
 msgid "%(username)s is not on %(name)s."
 msgstr "%(username)s is not on %(name)s."
 
-#: app/routes/teams.py:452
+#: app/routes/teams.py:471
 #, python-format
 msgid "%(username)s removed from %(name)s."
 msgstr "%(username)s removed from %(name)s."
 
-#: app/routes/teams.py:488 app/routes/teams.py:506
+#: app/routes/teams.py:508 app/routes/teams.py:526
 msgid "You do not have permission to add notes to this team."
 msgstr "You do not have permission to add notes to this team."
 
-#: app/routes/teams.py:496
+#: app/routes/teams.py:516
 msgid "Team notes added successfully!"
 msgstr "Team notes added successfully!"
 
-#: app/routes/teams.py:511 app/routes/users/notes.py:207
+#: app/routes/teams.py:531 app/routes/users/notes.py:207
 #: app/routes/users/notes.py:250
 msgid "Can only add notes for players."
 msgstr "Can only add notes for players."
 
-#: app/routes/teams.py:527
+#: app/routes/teams.py:547
 #, python-format
 msgid "Note added for %(username)s!"
 msgstr "Note added for %(username)s!"
@@ -578,23 +582,23 @@ msgstr "Only PDF files are allowed for contracts."
 msgid "That file is not a PDF, whatever its name says."
 msgstr "That file is not a PDF, whatever its name says."
 
-#: app/routes/users/accounts.py:53
+#: app/routes/users/accounts.py:54
 msgid "Only the president can manage users."
 msgstr "Only the president can manage users."
 
-#: app/routes/users/accounts.py:65
+#: app/routes/users/accounts.py:66
 msgid "Only the president can edit users."
 msgstr "Only the president can edit users."
 
-#: app/routes/users/accounts.py:106
+#: app/routes/users/accounts.py:107
 msgid "Email already in use by another account."
 msgstr "Email already in use by another account."
 
-#: app/routes/users/accounts.py:117
+#: app/routes/users/accounts.py:118
 msgid "You cannot change your own role. Ask another president to do it."
 msgstr "You cannot change your own role. Ask another president to do it."
 
-#: app/routes/users/accounts.py:130
+#: app/routes/users/accounts.py:131
 msgid ""
 "This is the last active president. Promote another account before "
 "changing this one."
@@ -602,34 +606,34 @@ msgstr ""
 "This is the last active president. Promote another account before "
 "changing this one."
 
-#: app/routes/users/accounts.py:209
+#: app/routes/users/accounts.py:210
 #, python-format
 msgid "User %(username)s updated successfully!"
 msgstr "User %(username)s updated successfully!"
 
-#: app/routes/users/accounts.py:230
+#: app/routes/users/accounts.py:231
 msgid "Only the president can delete users."
 msgstr "Only the president can delete users."
 
-#: app/routes/users/accounts.py:234
+#: app/routes/users/accounts.py:235
 msgid "You cannot delete your own account."
 msgstr "You cannot delete your own account."
 
-#: app/routes/users/accounts.py:277
+#: app/routes/users/accounts.py:294
 #, python-format
 msgid "User %(deleted_username)s has been removed."
 msgstr "User %(deleted_username)s has been removed."
 
-#: app/routes/users/accounts.py:288
+#: app/routes/users/accounts.py:305
 msgid "Only the president can create users."
 msgstr "Only the president can create users."
 
-#: app/routes/users/accounts.py:336
+#: app/routes/users/accounts.py:353
 #, python-format
 msgid "User %(full_name)s created as %(role)s!"
 msgstr "User %(full_name)s created as %(role)s!"
 
-#: app/routes/users/availability.py:179
+#: app/routes/users/availability.py:187
 msgid "Only coaches can manage availability."
 msgstr "Only coaches can manage availability."