Sync-In (#15812)

* Add sync-in (ct)

* remove empty lines

---------

Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>

ct/sync-in.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/Sync-in/server
+
+APP="Sync-in"
+var_tags="${var_tags:-files;sync;collaboration}"
+var_cpu="${var_cpu:-2}"
+var_ram="${var_ram:-2048}"
+var_disk="${var_disk:-20}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_arm64="${var_arm64:-yes}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /opt/sync-in/node_modules/@sync-in ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "sync-in" "Sync-in/server"; then
+    msg_info "Stopping Service"
+    systemctl stop sync-in
+    msg_ok "Stopped Service"
+
+    msg_info "Updating Sync-in"
+    $STD npm install --prefix /opt/sync-in "@sync-in/server@${CHECK_UPDATE_RELEASE#v}"
+    msg_ok "Updated Sync-in"
+
+    msg_info "Running Database Migrations"
+    cd /opt/sync-in
+    $STD npx sync-in-server migrate-db
+    msg_ok "Ran Database Migrations"
+
+    VERSION=$(node -pe "require('/opt/sync-in/node_modules/@sync-in/server/package.json').version" 2>/dev/null || echo "")
+    [[ -n "$VERSION" ]] && echo "$VERSION" >~/.sync-in
+
+    msg_info "Starting Service"
+    systemctl start sync-in
+    msg_ok "Started Service"
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW}Access it using the following URL:${CL}"
+echo -e "${GATEWAY}${BGN}http://${IP}:8080${CL}"