[IMP] add strict mode (set -euo pipefail) to all scripts

Enable bash strict mode in all shell scripts to catch errors early:
- set -e: Exit immediately if a command exits with non-zero status
- set -u: Treat unset variables as an error
- set -o pipefail: Return value of a pipeline is the status of the last
  command to exit with non-zero status

This prevents silent failures and makes debugging easier by failing fast
when something goes wrong instead of continuing with potentially corrupted
state.

finalize_db.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -euo pipefail
 
 DB_NAME="$1"
 ODOO_SERVICE="$2"