* fix: update email validation to include pm.me domain and improve error handling in extractDomainFromEmail function
* feat(organizations): add pm.me and additional personal email domains
- Add pm.me (ProtonMail short domain) to personal email providers list
- Add googlemail.com, ymail.com, msn.com, mac.com, and other common personal email domains
- Add Mail.com variants (email.com, post.com, consultant.com, etc.)
- Add protonmail.ch, gmx.de, naver.com, and other regional providers
- Update all three locations: utils.ts, orgCreationUtils.ts, and test file
- Fix ESLint warnings for unnecessary escape characters in regex
