Rename bookCommandUseCases to BookCommandUseCases (or specific use case)

[leodvincci]

Rename bookCommandUseCases to BookCommandUseCases (or specific use case)

Type: Refactor
Priority: P3

Summary

Class name violates Java naming conventions and is overly generic.

Impact

Codebase inconsistency, IDE warnings.

Evidence

bookCommandUseCases.java line 11.

@Service
public class bookCommandUseCases {

Proposed Fix

Rename to PlaceBookOnShelfUseCase or BookCommandUseCases.

Acceptance Criteria

• Class and references updated; build passes.

Expected

Use-case class names follow Java PascalCase and intent-specific naming.

Actual

Class name is lowercase and generic: bookCommandUseCases.