FIX: Add Support for Declaring Vector Fields in JsonModel with Relevant Unit Tests

[huwaizatahir2]

Issue Reference:
#656

This pull request addresses the inability to declare vector fields in JsonModel, as described in the referenced issue. The following updates are introduced to resolve the issue and enhance functionality:

Fixes

• Enabled the declaration of vector fields in JsonModel by refining the Field initialization logic and ensuring compatibility with VectorFieldOptions.
• Improved type inference for vector field annotations to align with Pythonic standards.

Additions

Unit Tests:

• Comprehensive tests for vector field declaration, schema generation, and functionality in JsonModel.
• Debug-specific test to investigate syntax errors related to vector fields, ensuring schema validity without redundant assertions.
• Updated test_literals to fix discrepancies in primary key validation for related tests.

Outcomes

• Fixed the syntax error when declaring vector fields in JsonModel.
• Validated vector field schema generation and runtime behavior with additional tests.
• Enhanced code quality and consistency with idiomatic Python practices and doc-strings.

[huwaizatahir2]

Hi @slorello89 @banker @simonprickett @chayim, can we please have a look at this PR, thanks

[huwaizatahir2]

Hi @slorello89 @banker @simonprickett @chayim, can we please have a look at this PR, thanks

@slorello89 @banker @simonprickett @chayim