feat(firewall): enhance firewall management with community selection and script handling

Added a community selection feature to the firewall rules management UI, allowing users to specify BGP communities for block/accept policies. Updated the backend to support reading firewall scripts from a specified directory, improving script management. Enhanced documentation to clarify the new community functionality and its implications for firewall rules. Additionally, introduced tests for the firewall script endpoints to ensure proper functionality.

internal/firewallscripts/uninstall.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+systemctl disable --now evobgp-firewall.timer 2>/dev/null || true
+rm -f /etc/cron.d/evobgp-firewall
+rm -f /etc/systemd/system/evobgp-firewall.service /etc/systemd/system/evobgp-firewall.timer
+systemctl daemon-reload 2>/dev/null || true
+
+nft delete table inet evobgp_blocklist 2>/dev/null || true
+ipset destroy evobgp_blocklist_v4 2>/dev/null || true
+iptables -D INPUT -m set --match-set evobgp_blocklist_v4 src -j DROP 2>/dev/null || true
+
+rm -f /usr/local/sbin/evobgp-firewall.sh /usr/local/sbin/evobgp-firewall-uninstall.sh
+rm -rf /var/lib/evobgp-firewall
+if [[ "${EVOBGP_UNINSTALL_REMOVE_CONF:-}" == "1" ]]; then
+  rm -f /etc/evobgp/firewall.conf
+fi
+
+echo "evobgp-firewall uninstalled"