Enhance data deserialization to support multiple numeric types (Double, Float, Int)

[ItzRenzo]

This PR enhances the MongoDB and MySQL data handlers to properly deserialize multiple numeric types, enabling support for double/decimal values in dependent plugins.

This change is required to support the double precision stat feature in EcoSkills:

• Adds double stat support, Display Entity damage indicators, and per-skill custom menu titles EcoSkills#182

[ItzRenzo]

This might not work for existing MySQL databases it will lead to schema mismatch problem you need to convert existing INTEGER/DOUBLE columns to VARCHAR(64).