Replace `LogManager.getLogger()` with `@Slf4j`

[AshishBagdane]

Description

Currently, our codebase uses private final Logger logger = LogManager.getLogger(); for logging. We need to replace it with Lombok’s @Slf4j annotation to reduce boilerplate code and improve maintainability.

Why?

1. Flexibility – @Slf4j is a logging abstraction that allows switching between different logging frameworks (e.g., Log4j2, Logback) without modifying the code.
2. Future-Proofing – Unlike @Log4j, which tightly couples our code to Log4j, @Slf4j ensures we can easily switch to another backend if needed.
3. Less Boilerplate – @Slf4j automatically generates the logger instance, removing the need for explicit declarations like LogManager.getLogger().
4. Best Practices – Many modern Java projects prefer @Slf4j as it integrates well with different logging backends and provides better adaptability.

Action Items:

• Replace all occurrences of private final Logger logger = LogManager.getLogger(); with @Slf4j annotation.
• Ensure no functionality is broken after the migration.

[ideal3147]

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