Regenerate core for 2025-10

[austin-denoble]

Problem

We're upgrading the TypeScript client to the latest version of Pinecone APIs: 2025-10. In order to do that, we need to regenerate the code under /pinecone-generated-ts-fetch/ off of the latest specifications.

Solution

• Bump the generate:openapi script in package.json to call ./codegen/build-oas.sh with version 2025-10.
• Run generation and replace code inside of /pinecone-generated-ts-fetch/.
• Update SDK wrapper code to align with generated changes:
  • Pass X_PINECONE_API_VERSION explicitly at all call sites.
  • Replace usages of explicit enums with string comparison where necessary.
  • We've made a lot of structural changes to the upstream specs, so there are a number of types that need tweaking in various places.
• Refactoring and updating some of our unit tests to handle types a bit better.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Infrastructure change (CI configs, etc)
• Non-code change (docs, etc)
• None of the above: (explain here)

Test Plan

Make sure existing CI unit & integration tests are passing with all the changes to the generated code + wrapper.

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• To see the specific tasks where the Asana app for GitHub is being used, see below:
  • https://app.asana.com/0/0/1211983912978922