fix: preserve reconcile validation errors in SDK contracts

[alongubkin]

Sync reconcile can reject invalid configuration with HTTP 422. Regenerate the checked-in OpenAPI contracts and TypeScript client so this response decodes as APIError and retains its structured code, retryability, and HTTP status.

Validation: generated with Speakeasy CLI 1.799.0; the generated TypeScript build passed. A local HTTP endpoint returning 422 was exercised through the real SDK reconcile call and verified typed APIError decoding and metadata. Restored unrelated documentation churn as whole files.

[greptile-apps]

Confidence Score: 5/5

[Critical risk] Updates public API contract for reconcile endpoint.

This PR appears safe to merge; no actionable issues were found.

What we checked:

• Rust uses the updated contract: build.rs watches and reads openapi.json, then generates the client during the build. This change does not need a checked-in Rust source update.

Summary

Adds HTTP 422 to the reconcile error contract so the TypeScript SDK returns APIError instead of a generic error.

• Updates all three checked-in Platform OpenAPI contracts.
• Updates the TypeScript error matcher, error documentation, and generation records.
• No actionable issues found. No builds or runtime tests were run during this review.

_{Reviews (1) · Last reviewed commit: "fix: preserve reconcile validation error..." · Reviewed by Greptile}