Migrate update script to Seerr; prompt rerun

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.

CHANGELOG.md

@@ -406,12 +406,6 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 ## 2026-02-16
 
-### 🚀 Updated Scripts
-
-  - #### 🐞 Bug Fixes
-
-    - jellyseerr/overseerr: Migrate update script to Seerr; prompt rerun [@MickLesk](https://github.com/MickLesk) ([#11965](https://github.com/community-scripts/ProxmoxVE/pull/11965))
-
 ## 2026-02-15
 
 ### 🆕 New Scripts

misc/alpine-install.func

@@ -34,6 +34,42 @@ EOF
   fi
 }
 
+set -Eeuo pipefail
+trap 'error_handler $? $LINENO "$BASH_COMMAND"' ERR
+trap on_exit EXIT
+trap on_interrupt INT
+trap on_terminate TERM
+
+error_handler() {
+  local exit_code="$1"
+  local line_number="$2"
+  local command="$3"
+
+  if [[ "$exit_code" -eq 0 ]]; then
+    return 0
+  fi
+
+  printf "\e[?25h"
+  echo -e "\n${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}\n"
+  exit "$exit_code"
+}
+
+on_exit() {
+  local exit_code="$?"
+  [[ -n "${lockfile:-}" && -e "$lockfile" ]] && rm -f "$lockfile"
+  exit "$exit_code"
+}
+
+on_interrupt() {
+  echo -e "\n${RD}Interrupted by user (SIGINT)${CL}"
+  exit 130
+}
+
+on_terminate() {
+  echo -e "\n${RD}Terminated by signal (SIGTERM)${CL}"
+  exit 143
+}
+
 # This function sets up the Container OS by generating the locale, setting the timezone, and checking the network connection
 setting_up_container() {
   msg_info "Setting up Container OS"

misc/install.func

@@ -172,7 +172,7 @@ network_check() {
   fi
 
   set -e
-  trap 'error_handler' ERR
+  trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
 }
 
 # ==============================================================================