Function getInitials

getInitials(name: string): string
Extract initials from a name or userId.
Parameters
- name: string
  The name or userId to extract initials from
Returns string
1-2 character initials in uppercase
Remarks
- For names with spaces, dashes, or underscores: uses first letter of first two parts
- For single words: uses first two characters
- For empty strings: returns '?'
Example
```
getInitials('John Doe')    // 'JD'
getInitials('jane_smith')  // 'JS'
getInitials('admin')       // 'AD'
getInitials('')            // '?'
```
- Defined in packages/utilities/src/avatar.ts:39