Migrate update script to Seerr; prompt rerun (#11965)

Update ct/jellyseerr.sh and ct/overseerr.sh to switch the container update handler to the Seerr script. The here-doc now uses a single-quoted EOF to avoid shell expansion and includes an explicit shebang for the generated /usr/bin/update. Instead of auto-executing the new update script, the code now informs the user to run 'update' again and exits (overseerr exits with 0). Also includes minor whitespace cleanup (removed trailing spaces on cd lines). This prevents unexpected immediate execution and ensures the generated script runs with the intended shell.

ct/jellyseerr.sh

@@ -45,16 +45,18 @@ function update_script() {
     fi
 
     msg_info "Switching update script to Seerr"
-    cat <<EOF >/usr/bin/update
+    cat <<'EOF' >/usr/bin/update
+#!/usr/bin/env bash
 bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/seerr.sh)"
 EOF
     chmod +x /usr/bin/update
-    msg_ok "Switched update script to Seerr. Running update..."
-    exec /usr/bin/update
+    msg_ok "Switched update script to Seerr"
+    msg_warn "Please type 'update' again to complete the migration"
+    exit
   fi
 
   msg_info "Updating Jellyseerr"
-  cd /opt/jellyseerr 
+  cd /opt/jellyseerr
   systemctl stop jellyseerr
   output=$(git pull --no-rebase)
   pnpm_desired=$(grep -Po '"pnpm":\s*"\K[^"]+' /opt/jellyseerr/package.json)
@@ -65,7 +67,7 @@ EOF
   fi
   rm -rf dist .next node_modules
   export CYPRESS_INSTALL_BINARY=0
-  cd /opt/jellyseerr 
+  cd /opt/jellyseerr
   $STD pnpm install --frozen-lockfile
   export NODE_OPTIONS="--max-old-space-size=3072"
   $STD pnpm build

ct/overseerr.sh

@@ -44,12 +44,14 @@ function update_script() {
     fi
 
     msg_info "Switching update script to Seerr"
-    cat <<EOF >/usr/bin/update
+    cat <<'EOF' >/usr/bin/update
+#!/usr/bin/env bash
 bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/seerr.sh)"
 EOF
     chmod +x /usr/bin/update
-    msg_ok "Switched update script to Seerr. Running update..."
-    exec /usr/bin/update
+    msg_ok "Switched update script to Seerr"
+    msg_warn "Please type 'update' again to complete the migration"
+    exit 0
   fi
 
   if check_for_gh_release "overseerr" "sct/overseerr"; then