docs: norme merge squash (feature→develop→master).

Met à jour la décision §26, le briefing front et l’API Gitea.
Les merges --no-ff déjà poussés (#167/#168) restent inchangés.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/26_GITEA-API.md

@@ -116,10 +116,17 @@ curl -s -H "Authorization: token $GITEA_TOKEN" \
   "https://git.ptits-pas.fr/api/v1/repos/jmartin/petitspas/pulls?state=open" | jq .
 
 # Créer une PR (head = branche source, base = branche cible)
+# Norme : feature/* → develop, puis develop → master
 curl -s -X POST -H "Authorization: token $GITEA_TOKEN" \
   -H "Content-Type: application/json" \
-  -d '{"head":"develop","base":"master","title":"Titre de la PR"}' \
+  -d '{"head":"feature/XX-nom","base":"develop","title":"feat(#XX): Titre","body":"Closes #XX"}' \
   "https://git.ptits-pas.fr/api/v1/repos/jmartin/petitspas/pulls"
+
+# Merger en squash (norme — voir 24_DECISIONS-PROJET.md §26)
+curl -s -X POST -H "Authorization: token $GITEA_TOKEN" \
+  -H "Content-Type: application/json" \
+  -d '{"Do":"squash","MergeTitleField":"feat(#XX): Titre","MergeMessageField":"Closes #XX"}' \
+  "https://git.ptits-pas.fr/api/v1/repos/jmartin/petitspas/pulls/{index}/merge"
 ```
 
 ### 3.4 Branches