Switch update script to Seerr

The migration wrote the new update script directly to /usr/bin/update
while the parent shell still had the file open for reading. Since the
new content (with shebang) is longer than the original single-line file,
bash would read leftover bytes from the new content after the child
process exited, causing:
  /usr/bin/update: line 2: syntax error near unexpected token )'

Fix: write to a temp file first, then mv over /usr/bin/update. This
replaces the inode so the parent shell's fd sees EOF on the old
(unlinked) inode instead of reading into the new content.

ct/jellyseerr.sh

@@ -45,14 +45,15 @@ function update_script() {
     fi
 
     msg_info "Switching update script to Seerr"
-    cat <<'EOF' >/usr/bin/update
-#!/usr/bin/env bash
+    TMP_UPDATE=$(mktemp)
+    cat <<'EOF' >"$TMP_UPDATE"
 bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/seerr.sh)"
 EOF
+    mv "$TMP_UPDATE" /usr/bin/update
     chmod +x /usr/bin/update
     msg_ok "Switched update script to Seerr"
     msg_warn "Please type 'update' again to complete the migration"
-    exit
+    exit 0
   fi
 
   msg_info "Updating Jellyseerr"

ct/overseerr.sh

@@ -44,10 +44,11 @@ function update_script() {
     fi
 
     msg_info "Switching update script to Seerr"
-    cat <<'EOF' >/usr/bin/update
-#!/usr/bin/env bash
+    TMP_UPDATE=$(mktemp)
+    cat <<'EOF' >"$TMP_UPDATE"
 bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/seerr.sh)"
 EOF
+    mv "$TMP_UPDATE" /usr/bin/update
     chmod +x /usr/bin/update
     msg_ok "Switched update script to Seerr"
     msg_warn "Please type 'update' again to complete the migration"

install/powerdns-install.sh

@@ -38,12 +38,6 @@ msg_info "Setting up PowerDNS"
 $STD apt install -y \
   pdns-server \
   pdns-backend-sqlite3
-sed -i 's/^launch=$/# launch=/' /etc/powerdns/pdns.conf
-rm -f /etc/powerdns/pdns.d/bind.conf
-cat <<EOF >/etc/powerdns/pdns.d/gsqlite3.conf
-launch+=gsqlite3
-gsqlite3-database=/opt/poweradmin/powerdns.db
-EOF
 msg_ok "Setup PowerDNS"
 
 fetch_and_deploy_gh_release "poweradmin" "poweradmin/poweradmin" "tarball"
@@ -132,10 +126,7 @@ cat <<EOF >/etc/apache2/sites-enabled/poweradmin.conf
 EOF
 $STD a2enmod rewrite headers
 chown -R www-data:www-data /opt/poweradmin
-chown pdns:pdns /opt/poweradmin/powerdns.db
-chmod 664 /opt/poweradmin/powerdns.db
-usermod -aG pdns www-data
-$STD systemctl restart pdns apache2
+$STD systemctl restart apache2
 msg_info "Created Service"
 
 motd_ssh