When skills are imported via skills.sh URLs or key-style imports
(org/repo/skill), the stored sourceType is now "skills_sh" with the
original skills.sh URL as sourceLocator, instead of "github" with the
resolved GitHub URL.
- Add "skills_sh" to CompanySkillSourceType and CompanySkillSourceBadge
- Track originalSkillsShUrl in parseSkillImportSourceInput
- Override sourceType/sourceLocator in importFromSource for skills.sh
- Handle skills_sh in key derivation, source info, update checks,
file reads, portability export, and UI badge rendering
Co-Authored-By: Paperclip <noreply@paperclip.ing>
