Kotlin/KMM:
- Update Contractor model with optional residenceId and specialties array
- Rename averageRating to rating, update address field names
- Add ContractorMinimal model for task references
- Add residence picker and multi-select specialty chips to AddContractorDialog
- Fix ContractorsScreen and ContractorDetailScreen field references
iOS:
- Rewrite ContractorFormSheet with residence and specialty pickers
- Update ContractorDetailView with FlowLayout for specialties
- Add FlowLayout component for wrapping badge layouts
- Fix ContractorCard and CompleteTaskView field references
- Update ContractorFormState with residence/specialty selection
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Co-Authored-By: Claude <noreply@anthropic.com>