fix(gitea): Create git group explicitly before user

Alpine's adduser wasn't creating the group properly, causing
chown git:git to fail with "unknown group".

- Add explicit addgroup -g 1000 git before adduser
- Use -G git flag to assign user to the group
- Bump to r4

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package/secubox/secubox-app-gitea/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=secubox-app-gitea
 PKG_VERSION:=1.0.0
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 PKG_ARCH:=all
 
 PKG_MAINTAINER:=CyberMind Studio <contact@cybermind.fr>

package/secubox/secubox-app-gitea/files/usr/sbin/giteactl

@@ -244,10 +244,14 @@ if ! command -v su-exec >/dev/null 2>&1; then
     apk add --no-cache git git-lfs openssh su-exec sqlite
 fi
 
-# Always ensure git user exists (doesn't persist between container restarts)
+# Always ensure git user/group exists (doesn't persist between container restarts)
+if ! getent group git >/dev/null 2>&1; then
+    echo "Creating git group..."
+    addgroup -g 1000 git
+fi
 if ! id -u git >/dev/null 2>&1; then
     echo "Creating git user..."
-    adduser -D -s /bin/sh -h /data -u 1000 git
+    adduser -D -s /bin/sh -h /data -u 1000 -G git git
 fi
 
 # Ensure directories exist with correct ownership