Function unwrapOr

Core exports - Types, Result<T,E>, errors, and logger Split from index.ts for file size compliance (Issue #285)

unwrapOr<T, E>(result: Result<T, E>, defaultValue: T): T
Extracts the success value from a Result, or returns a default value.
Type Parameters
- T
  The success value type
- E
  The error value type
Parameters
- result: Result<T, E>
  The Result to unwrap
- defaultValue: T
  The default value to return if Err
Returns T
The success value or the default value
Example
```
const result = err(new Error('failed'));
const value = unwrapOr(result, 'fallback');
console.log(value); // "fallback"
```
- Defined in packages/nexus-agents/src/core/result.ts:144