v1.1.0

v1.1.0 - Redis Blacklist Migration & Improvements

Highlights:
• Migrated token blacklist storage from database to Redis (high performance, TTL based auto-cleanup).
• Updated logout flow to blacklist tokens in Redis.
• Updated JwtAuthenticationFilter to validate tokens using Redis.
• Removed database blacklisted_tokens table and related entity/repository.
• Added Liquibase changelog to drop the old table.
• Updated README:
• Redis installation and configuration guide
• Updated features and technology stack to mention Redis
• Performance and security improvements.