zod: string escape and enum

[Totorro35]

• Fix string escape in Zod
• Inject default enum in place to avoid error

Duplication of #2594

[Copilot]

Pull request overview

This PR fixes two issues in the Zod package: string escaping to handle single quotes correctly, and preventing errors when using enum arrays as default values by inlining them instead of creating separate constants.

• Fixed string escape logic to properly handle single quotes in string values
• Changed enum array defaults to be inlined rather than extracted as separate constants
• Updated tests to reflect the new inline enum array default behavior

Reviewed changes

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

File	Description
packages/core/src/utils/string.ts	Added string escaping for single quotes using replaceAll
packages/zod/src/index.ts	Modified enum array default handling to inline values instead of creating constants
packages/zod/src/zod.test.ts	Updated test expectations to match new inline enum array default behavior

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