[Feature] Title System

[gn01842919]

Users can earn titles by meeting specific conditions. For example, achieving daily exercise, hydration, early bedtime, and healthy eating goals for an entire week can grant the title "Disciplined Individual".

Titles can level up and evolve. For instance:

• Disciplined Individual Lv10 → evolves into Master of Self-Management Lv1
• Master of Self-Management Lv10 → evolves into The Persevering Soul

This system appeals to users with a penchant for collection, offering them a stronger sense of self-motivation.

It pairs especially well with the previously proposed [Feature] Joint Task/Reward System (#174), providing an additional fun and effective way to encourage others, while also serving as a motivational badge among members.