🔒 Sentinel: [HIGH] Fix SQL injection in BookingControllerViewScope completeStaff

[ManupaKDU]

🎯 What: Fixed an SQL injection vulnerability in BookingControllerViewScope.java where the query input was unsafely concatenated into a JPQL statement.

⚠️ Risk: An attacker could potentially inject malicious JPQL to bypass the filtering logic, retrieve sensitive information about all staff members regardless of the applied parameters, or cause denial of service.

🛡️ Solution: Replaced string concatenation with parameterized JPQL using :q. The Map securely passes the uppercase query representation, and upper() was applied to entity property names in the JPQL to maintain case-insensitive querying capabilities securely.

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PR created automatically by Jules for task 6727759521441987663 started by @manupawickramasinghe

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