Add container templates and installers for apps

Add new ProxmoxVED container templates (ct/*.sh), install scripts (install/*.sh) and metadata (json/*.json) for multiple applications: Akaunting, Blinko, Certimate, Dagu, Gogs, InvoiceShelf, Matomo, Papermark, RSS-Bridge, SolidTime and WhoDB. Each ct script includes update logic and deployment helpers; install scripts handle dependency installation, service creation (systemd), DB setup, and Caddy/PHP/Node/Postgres configuration where applicable. JSON entries provide UI metadata, resource defaults and access ports for each app.

ct/rss-bridge.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/misc/build.func)
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://rss-bridge.org/
+
+APP="RSS-Bridge"
+var_tags="${var_tags:-rss;feed;bridge}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-2}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+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/rss-bridge ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "rss-bridge" "RSS-Bridge/rss-bridge"; then
+    msg_info "Backing up Data"
+    cp /opt/rss-bridge/config.ini.php /opt/rss-bridge_config.bak 2>/dev/null
+    msg_ok "Backed up Data"
+
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "rss-bridge" "RSS-Bridge/rss-bridge" "tarball"
+
+    msg_info "Restoring Data"
+    cp /opt/rss-bridge_config.bak /opt/rss-bridge/config.ini.php 2>/dev/null
+    rm -f /opt/rss-bridge_config.bak
+    msg_ok "Restored Data"
+
+    msg_info "Updating Application"
+    cd /opt/rss-bridge
+    $STD composer install --no-dev --optimize-autoloader
+    chown -R www-data:www-data /opt/rss-bridge
+    msg_ok "Updated Application"
+
+    systemctl restart caddy
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}${CL}"