VArg silently returns undefined for non-JSON string arguments

[xsynaptic]

Environment

I'm working with v4.0.0-alpha.1.

Reproduction

import { VArg } from "ipx/handlers/utils";

// These return undefined instead of the expected string value
VArg("450x300")  // undefined (expected: "450x300")
VArg("cover")    // undefined (expected: "cover")
VArg("ff0000")   // undefined (expected: "ff0000")

// JSON primitives work fine
VArg("123")      // 123
VArg("true")     // true

Describe the bug

JSON.parse("450x300") throws SyntaxError. The catch block swallows it and the function ends without returning, so undefined is returned implicitly.

export function VArg(argument: string) {
  if (argument === "Infinity") {
    return Infinity;
  }
  try {
    const val = JSON.parse(argument);
    // ...
  } catch {
    // error swallowed
  }
  // no return → undefined
}

I'll submit a PR with a fix restoring behavior to what it was before destr was removed 🙌

Additional context

No response

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