[BAC-381] Enhance from_json with metamagic

[taleh007]

Approx x2 perf

tested with:
words-big.json

[Copilot]

Pull Request Overview

This PR enhances JSON parsing functionality by adding support for camelCase attribute aliases. The implementation allows entities to automatically handle JSON keys in camelCase format by creating aliases for snake_case attributes.

• Introduces a new CamelCaseable module that automatically creates camelCase aliases for attributes
• Updates JSON parser to use attribute aliases when setting values from JSON
• Modifies the parsing logic to iterate over camelized attribute names instead of original attribute names

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
lib/active_model/entity.rb	Includes the new CamelCaseable module in the Entity base class
lib/active_model/entity/camel_caseable.rb	New module that creates camelCase aliases for attributes and tracks camelized names
lib/active_model/entity/parsers/json.rb	Updates JSON parsing to resolve attribute aliases and use camelized attribute names

Comments suppressed due to low confidence (1)

lib/active_model/entity/camel_caseable.rb:17

• The variable name 'camelize_name' is grammatically incorrect. It should be 'camelized_name' to properly indicate that it's the camelized version of the name.

          camelize_name = name.to_s.camelize(:lower)

[Copilot]

The indentation is inconsistent here. This line appears to be over-indented compared to the surrounding code block.

Suggested change

	alias_attribute camelize_name.to_sym, name
	alias_attribute camelize_name.to_sym, name

[Copilot]

This logic skips processing when the JSON key is not present, but the original code would still call 'set_attribute_from_json' even with nil values. This change in behavior could cause attributes to not be initialized properly if they expect to handle nil values.