Add Linkding CT/install scripts and frontend

Add Linkding integration: new CT template (ct/linkding.sh) and installer (install/linkding-install.sh) to deploy Linkding as a container. Installer fetches the GitHub release, builds the frontend, compiles the SQLite ICU extension, creates .env with generated admin password, and installs systemd services (linkding, linkding-tasks). Also add frontend metadata (frontend/public/json/linkding.json) for the app catalog. Minor tweak: remove unused import_local_ip from install/wger-install.sh.

install/linkding-install.sh

@@ -0,0 +1,116 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (MickLesk)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://linkding.link/
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+$STD apt-get install -y \
+  build-essential \
+  pkg-config \
+  libpq-dev \
+  libicu-dev \
+  libsqlite3-dev \
+  libffi-dev \
+  unzip \
+  wget
+msg_ok "Installed Dependencies"
+
+NODE_VERSION="22" setup_nodejs
+setup_uv
+
+fetch_and_deploy_gh_release "linkding" "sissbruecker/linkding"
+
+msg_info "Building Frontend"
+cd /opt/linkding
+$STD npm ci
+$STD npm run build
+msg_ok "Built Frontend"
+
+msg_info "Compiling SQLite ICU Extension"
+cd /tmp
+SQLITE_RELEASE_YEAR=2023
+SQLITE_RELEASE=3430000
+$STD wget https://www.sqlite.org/${SQLITE_RELEASE_YEAR}/sqlite-amalgamation-${SQLITE_RELEASE}.zip
+$STD unzip -o sqlite-amalgamation-${SQLITE_RELEASE}.zip
+cp sqlite-amalgamation-${SQLITE_RELEASE}/sqlite3.h .
+cp sqlite-amalgamation-${SQLITE_RELEASE}/sqlite3ext.h .
+$STD wget "https://www.sqlite.org/src/raw/ext/icu/icu.c?name=91c021c7e3e8bbba286960810fa303295c622e323567b2e6def4ce58e4466e60" -O icu.c
+$STD gcc -fPIC -shared icu.c $(pkg-config --libs --cflags icu-uc icu-io) -o /opt/linkding/libicu.so
+rm -rf sqlite-amalgamation-${SQLITE_RELEASE}* icu.c sqlite3.h sqlite3ext.h
+cd /opt/linkding
+msg_ok "Compiled SQLite ICU Extension"
+
+msg_info "Setting up ${APP}"
+rm -f bookmarks/settings/dev.py
+touch bookmarks/settings/custom.py
+$STD uv sync --no-dev
+$STD uv pip install gunicorn
+mkdir -p data/{favicons,previews,assets}
+ADMIN_PASS=$(openssl rand -base64 18 | tr -dc 'a-zA-Z0-9' | cut -c1-13)
+cat <<EOF >/opt/linkding/.env
+LD_SUPERUSER_NAME=admin
+LD_SUPERUSER_PASSWORD=${ADMIN_PASS}
+LD_CSRF_TRUSTED_ORIGINS=http://${LOCAL_IP}:9090
+EOF
+set -a && source /opt/linkding/.env && set +a
+$STD uv run python manage.py generate_secret_key
+$STD uv run python manage.py migrate
+$STD uv run python manage.py enable_wal
+$STD uv run python manage.py create_initial_superuser
+$STD uv run python manage.py collectstatic --no-input
+msg_ok "Set up ${APP}"
+
+msg_info "Creating Services"
+cat <<EOF >/etc/systemd/system/linkding.service
+[Unit]
+Description=linkding Bookmark Manager
+After=network.target
+
+[Service]
+User=root
+WorkingDirectory=/opt/linkding
+EnvironmentFile=/opt/linkding/.env
+ExecStart=/opt/linkding/.venv/bin/gunicorn \
+  --bind 0.0.0.0:9090 \
+  --workers 3 \
+  --threads 2 \
+  --timeout 120 \
+  bookmarks.wsgi:application
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+cat <<EOF >/etc/systemd/system/linkding-tasks.service
+[Unit]
+Description=linkding Background Tasks
+After=network.target
+
+[Service]
+User=root
+WorkingDirectory=/opt/linkding
+EnvironmentFile=/opt/linkding/.env
+ExecStart=/opt/linkding/.venv/bin/python manage.py run_huey
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q --now linkding linkding-tasks
+msg_ok "Created Services"
+
+motd_ssh
+customize
+cleanup_lxc

install/wger-install.sh

@@ -21,7 +21,6 @@ $STD apt install -y \
   libpq-dev
 msg_ok "Installed Dependencies"
 
-import_local_ip
 NODE_VERSION="22" NODE_MODULE="sass" setup_nodejs
 setup_uv
 PG_VERSION="16" setup_postgresql