fix: Multiple distro issues from testing

Devuan:
- Fixed sed syntax error: replaced -E with BRE, removed invalid [^$] pattern
- Simplified regex patterns for inittab autologin matching

openEuler:
- Added template patching to inject /etc/redhat-release before pct create
- This fixes 'error in setup task PVE::LXC::Setup::post_create_hook'
- Reverted to unprivileged container (privileged not needed with patch)

openSUSE:
- Added --gpg-auto-import-keys to zypper to avoid interactive GPG prompts
- This was causing the 15+ minute hangs during package manager init

Gentoo:
- Changed to use emerge-webrsync (http) instead of emerge --sync (rsync)
- webrsync is significantly faster than full rsync sync
- Install curl FIRST before other packages (required for install.func)
- Better error handling with separate curl check

Rocky Linux DNS issue:
- Not a script bug - container network/DNS not working
- User should check container gateway and DNS settings

ct/openeuler.sh

@@ -5,10 +5,9 @@ source <(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxV
 # License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
 # Source: https://www.openeuler.org/
 
-# NOTE: openEuler requires privileged container due to PVE limitation
-# PVE's post_create_hook expects /etc/redhat-release which openEuler doesn't have
-# This causes "unable to create CT - error in setup task PVE::LXC::Setup::post_create_hook"
-# Setting var_unprivileged=0 creates privileged container which bypasses this check
+# NOTE: openEuler has a PVE compatibility issue
+# PVE's post_create_hook expects /etc/redhat-release which openEuler doesn't have by default
+# We handle this in build.func by creating the file after container creation
 
 APP="openEuler"
 var_tags="${var_tags:-os}"
@@ -17,7 +16,7 @@ var_ram="${var_ram:-512}"
 var_disk="${var_disk:-4}"
 var_os="${var_os:-openeuler}"
 var_version="${var_version:-25.03}"
-var_unprivileged="${var_unprivileged:-0}"
+var_unprivileged="${var_unprivileged:-1}"
 
 header_info "$APP"
 variables