refactor(etherpad): address review feedback

- Replace manual tag lookup + git clone/checkout with
  fetch_and_deploy_gh_release (tarball mode) for both install and update
  paths, matching repo convention (see ct/clickhouse.sh).
- Drop git, curl, ca-certificates from apt deps — base image ships them
  and the helper no longer needs git.
- Remove the id -u etherpad guard; fresh LXC will not have the user.
- Bump Debian from 12 to 13 (trixie).
- Switch logo to selfh.st/icons webp.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

ct/etherpad.sh

@@ -11,7 +11,7 @@ var_cpu="${var_cpu:-2}"
 var_ram="${var_ram:-2048}"
 var_disk="${var_disk:-8}"
 var_os="${var_os:-debian}"
-var_version="${var_version:-12}"
+var_version="${var_version:-13}"
 var_unprivileged="${var_unprivileged:-1}"
 
 header_info "$APP"
@@ -39,16 +39,15 @@ function update_script() {
     [ -d /opt/etherpad-lite/var ] && cp -a /opt/etherpad-lite/var /opt/etherpad-var.bak
     msg_ok "Backed up Configuration"
 
-    LATEST_TAG=$(curl -fsSL https://api.github.com/repos/ether/etherpad-lite/releases/latest | grep -oP '"tag_name":\s*"\K[^"]+')
-    msg_info "Updating to ${LATEST_TAG}"
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "etherpad-lite" "ether/etherpad-lite" "tarball" "latest" "/opt/etherpad-lite"
+
+    msg_info "Rebuilding Etherpad"
     cd /opt/etherpad-lite
-    $STD git fetch --tags --prune
-    $STD git checkout "${LATEST_TAG}"
     export COREPACK_ENABLE_DOWNLOAD_PROMPT=0
     $STD corepack enable
     $STD pnpm install --frozen-lockfile
     $STD pnpm run build:etherpad
-    msg_ok "Updated to ${LATEST_TAG}"
+    msg_ok "Rebuilt Etherpad"
 
     msg_info "Restoring Configuration"
     [ -f /opt/etherpad-settings.json.bak ] && mv /opt/etherpad-settings.json.bak /opt/etherpad-lite/settings.json

install/etherpad-install.sh

@@ -15,9 +15,6 @@ update_os
 
 msg_info "Installing Dependencies"
 $STD apt install -y \
-  git \
-  curl \
-  ca-certificates \
   build-essential \
   pkg-config \
   libsqlite3-dev
@@ -31,20 +28,10 @@ $STD corepack enable
 msg_ok "Enabled pnpm"
 
 msg_info "Creating etherpad User"
-if ! id -u etherpad >/dev/null 2>&1; then
-  useradd --system --create-home --home-dir /var/lib/etherpad --shell /usr/sbin/nologin etherpad
-fi
+useradd --system --create-home --home-dir /var/lib/etherpad --shell /usr/sbin/nologin etherpad
 msg_ok "Created etherpad User"
 
-msg_info "Cloning Etherpad"
-LATEST_TAG=$(curl -fsSL https://api.github.com/repos/ether/etherpad-lite/releases/latest | grep -oP '"tag_name":\s*"\K[^"]+')
-if [ -z "${LATEST_TAG}" ]; then
-  msg_error "Unable to determine latest Etherpad release"
-  exit 1
-fi
-$STD git clone --depth 1 --branch "${LATEST_TAG}" https://github.com/ether/etherpad-lite.git /opt/etherpad-lite
-echo "${LATEST_TAG}" >/opt/etherpad-lite/.version
-msg_ok "Cloned Etherpad ${LATEST_TAG}"
+fetch_and_deploy_gh_release "etherpad-lite" "ether/etherpad-lite" "tarball" "latest" "/opt/etherpad-lite"
 
 msg_info "Building Etherpad"
 cd /opt/etherpad-lite

json/etherpad.json

@@ -11,7 +11,7 @@
   "interface_port": 9001,
   "documentation": "https://etherpad.org/doc",
   "website": "https://etherpad.org",
-  "logo": "https://raw.githubusercontent.com/ether/etherpad-lite/develop/src/static/favicon.ico",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/etherpad.webp",
   "description": "Etherpad is a highly customizable real-time collaborative document editor. It lets multiple people edit the same document simultaneously in the browser, with live changes, per-user colors, chat, and a rich plugin ecosystem.",
   "install_methods": [
     {
@@ -23,7 +23,7 @@
         "ram": 2048,
         "hdd": 8,
         "os": "Debian",
-        "version": "12"
+        "version": "13"
       }
     }
   ],