Change default currency to EUR

[getpinga]

Change Default Currency to EUR

Tasks

• Identify all locations where the default currency is set.
• Update configuration or environment variable(s) to set EUR (€) as the default currency.
• Update documentation and user-facing notes if relevant.
• Test to ensure all transactions and displays use EUR as the default.

Acceptance Criteria

• The system uses EUR as the default currency after the change.
• No regressions or errors in existing features.