FINERACT-2450: Fix IndexOutOfBoundsException in GlobalConfigurationHelper

[DeathGun44]

Description

This PR refactors GlobalConfigurationHelper.java to fix a fragility issue where adding new global configurations to the database causes the integration test suite to crash with IndexOutOfBoundsException.

Changes:

• Map-Based Lookup: Replaced the fragile index-based iteration (parallel lists) with a robust Map-based lookup using configuration names. This prevents crashes when the database configuration count differs from the test harness default count.
• Strict Validation: Implemented a strict check that throws a descriptive RuntimeException if a database configuration is missing from the test defaults. This prevents silent bypasses and directs developers to explicitly register new configurations to ensure test isolation.
• Preserved Logic: Configuration reset logic (restoring values/enabled flags) remains behaviorally identical but is now order-independent and crash-proof.

Checklist

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