Fix parameter handling with optional pointer types and validation improvements

[moutonjeremy]

Fix optional pointer parameters in SearchInput, improve validation logic for path and query parameters, and add tests for pointer types in auto-generated parameters. Clean up code for consistency.

[Copilot]

Pull Request Overview

This PR fixes parameter handling for optional pointer types in struct-based OpenAPI parameter generation. The changes ensure that pointer types are correctly marked as optional and nullable in the generated OpenAPI specification, while path parameters remain always required.

Key changes:

• Separated validation logic for query parameters vs path parameters, with path parameters always required
• Added nullable schema property for pointer types in OpenAPI spec
• Added comprehensive test coverage for pointer type parameter handling

Reviewed Changes

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

File	Description
common.go	Refactored parameter validation logic to distinguish between path and query parameters, added isQueryFieldRequired function, and updated schema generation to mark pointer types as nullable
auto_params_test.go	Added test case TestAutoParamsPointerTypesInline to verify pointer type parameters are correctly marked as optional and nullable
_examples/auto_params/main.go	Added example usage of pointer type parameters (Category, MaxResults, IncludeInactive) to demonstrate optional parameter handling

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[Copilot]

Pull Request Overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

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