Add base models and field definitions with unit tests

[oLeoz1n]

feat(fields, models): add base models and field definitions with unit tests

Resolves #7

[Copilot]

Pull Request Overview

This PR introduces the foundational structure for the omnizen package by adding base models and field definitions with comprehensive unit tests. The implementation establishes an abstract base model with required CRUD operations and utility methods, along with specialized field types for enhanced data modeling.

Key changes:

• Implements a BaseModel class with abstract methods for CRUD operations and utility methods for field introspection
• Creates NameField function for handling unique and autoincrement field types with schema extensions
• Develops a Choices enum class for creating type-safe choice fields with automatic label generation

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
omnizen/models/base.py	Defines abstract BaseModel class with CRUD operations and field utility methods
omnizen/fields/base.py	Implements NameField function with type validation and schema customization
omnizen/fields/types.py	Creates Choices enum class with metaclass for choice field functionality
tests/unit/models/test_base_model.py	Comprehensive unit tests for BaseModel functionality and field integration
tests/unit/fields/test_fields.py	Unit tests for NameField function and Choices enum class
omnizen/models/init.py	Package initialization for models module
omnizen/fields/init.py	Package initialization for fields module
tests/unit/models/init.py	Test package initialization for models tests
tests/unit/fields/init.py	Test package initialization for fields tests

[leonextlevel]

o que entraria aqui nesse json_schema_extra?

[oLeoz1n]

O Json Schema é a forma possível da gente passar os parâmetros personalizados do NameField para usarmos na criação da model. Originalmente ele funciona para agregar ao JSON de cada field, podendo até receber funções.
Por isso temos que fazer essa validação.

link

[leonextlevel]

esses overloads parecem meio redundantes, não?

[leonextlevel]

precisa desse último?

[oLeoz1n]

Sem o último os args do autoincrement aparecem quando a classe ainda não possui nenhum argumento, com ele só aparecem ao selecionar o name_type="autoincrement"