Add residence picker to contractor create/edit screens

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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

iosApp/iosApp/Core/FormStates/ContractorFormState.swift

@@ -10,17 +10,21 @@ struct ContractorFormState: FormState {
     var company = FormField<String>()
     var phone = FormField<String>()
     var email = FormField<String>()
-    var secondaryPhone = FormField<String>()
-    var specialty = FormField<String>()
-    var licenseNumber = FormField<String>()
     var website = FormField<String>()
-    var address = FormField<String>()
+    var streetAddress = FormField<String>()
     var city = FormField<String>()
-    var state = FormField<String>()
-    var zipCode = FormField<String>()
+    var stateProvince = FormField<String>()
+    var postalCode = FormField<String>()
     var notes = FormField<String>()
     var isFavorite: Bool = false
 
+    // Residence selection (optional - nil means personal contractor)
+    var selectedResidenceId: Int32?
+    var selectedResidenceName: String?
+
+    // Specialty IDs (multiple selection)
+    var selectedSpecialtyIds: [Int32] = []
+
     // For edit mode
     var existingContractorId: Int32?
 
@@ -48,16 +52,16 @@ struct ContractorFormState: FormState {
         company = FormField<String>()
         phone = FormField<String>()
         email = FormField<String>()
-        secondaryPhone = FormField<String>()
-        specialty = FormField<String>()
-        licenseNumber = FormField<String>()
         website = FormField<String>()
-        address = FormField<String>()
+        streetAddress = FormField<String>()
         city = FormField<String>()
-        state = FormField<String>()
-        zipCode = FormField<String>()
+        stateProvince = FormField<String>()
+        postalCode = FormField<String>()
         notes = FormField<String>()
         isFavorite = false
+        selectedResidenceId = nil
+        selectedResidenceName = nil
+        selectedSpecialtyIds = []
         existingContractorId = nil
     }
 
@@ -65,20 +69,19 @@ struct ContractorFormState: FormState {
     func toCreateRequest() -> ContractorCreateRequest {
         ContractorCreateRequest(
             name: name.trimmedValue,
+            residenceId: selectedResidenceId.map { KotlinInt(int: $0) },
             company: company.isEmpty ? nil : company.trimmedValue,
             phone: phone.isEmpty ? nil : phone.trimmedValue,
             email: email.isEmpty ? nil : email.trimmedValue,
-            secondaryPhone: secondaryPhone.isEmpty ? nil : secondaryPhone.trimmedValue,
-            specialty: specialty.isEmpty ? nil : specialty.trimmedValue,
-            licenseNumber: licenseNumber.isEmpty ? nil : licenseNumber.trimmedValue,
             website: website.isEmpty ? nil : website.trimmedValue,
-            address: address.isEmpty ? nil : address.trimmedValue,
+            streetAddress: streetAddress.isEmpty ? nil : streetAddress.trimmedValue,
             city: city.isEmpty ? nil : city.trimmedValue,
-            state: state.isEmpty ? nil : state.trimmedValue,
-            zipCode: zipCode.isEmpty ? nil : zipCode.trimmedValue,
+            stateProvince: stateProvince.isEmpty ? nil : stateProvince.trimmedValue,
+            postalCode: postalCode.isEmpty ? nil : postalCode.trimmedValue,
+            rating: nil,
             isFavorite: isFavorite,
-            isActive: true,
-            notes: notes.isEmpty ? nil : notes.trimmedValue
+            notes: notes.isEmpty ? nil : notes.trimmedValue,
+            specialtyIds: selectedSpecialtyIds.isEmpty ? nil : selectedSpecialtyIds.map { KotlinInt(int: $0) }
         )
     }
 
@@ -86,20 +89,19 @@ struct ContractorFormState: FormState {
     func toUpdateRequest() -> ContractorUpdateRequest {
         ContractorUpdateRequest(
             name: name.isEmpty ? nil : name.trimmedValue,
+            residenceId: selectedResidenceId.map { KotlinInt(int: $0) },
             company: company.isEmpty ? nil : company.trimmedValue,
             phone: phone.isEmpty ? nil : phone.trimmedValue,
             email: email.isEmpty ? nil : email.trimmedValue,
-            secondaryPhone: secondaryPhone.isEmpty ? nil : secondaryPhone.trimmedValue,
-            specialty: specialty.isEmpty ? nil : specialty.trimmedValue,
-            licenseNumber: licenseNumber.isEmpty ? nil : licenseNumber.trimmedValue,
             website: website.isEmpty ? nil : website.trimmedValue,
-            address: address.isEmpty ? nil : address.trimmedValue,
+            streetAddress: streetAddress.isEmpty ? nil : streetAddress.trimmedValue,
             city: city.isEmpty ? nil : city.trimmedValue,
-            state: state.isEmpty ? nil : state.trimmedValue,
-            zipCode: zipCode.isEmpty ? nil : zipCode.trimmedValue,
+            stateProvince: stateProvince.isEmpty ? nil : stateProvince.trimmedValue,
+            postalCode: postalCode.isEmpty ? nil : postalCode.trimmedValue,
+            rating: nil,
             isFavorite: isFavorite.asKotlin,
-            isActive: nil,
-            notes: notes.isEmpty ? nil : notes.trimmedValue
+            notes: notes.isEmpty ? nil : notes.trimmedValue,
+            specialtyIds: selectedSpecialtyIds.isEmpty ? nil : selectedSpecialtyIds.map { KotlinInt(int: $0) }
         )
     }
 }