Add rework pricing type (Fixed vs Per-Item) and inline rework flow on Job Details

Adds a PricingType enum to ReworkRecord (FixedPrice | PerItem), surfaces the
choice in the rework modal on Job Details, and wires the resulting unit/total
price display. Includes migration AddReworkPricingType, updated repository
query for rework history, and help article updates.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/PowderCoating.Application/DTOs/Job/JobDtos.cs

@@ -486,6 +486,7 @@ public class ReworkRecordDto
     public decimal ActualReworkCost { get; set; }
     public bool IsBillableToCustomer { get; set; }
     public string? BillingNotes { get; set; }
+    public PowderCoating.Core.Enums.ReworkPricingType? ReworkPricingType { get; set; }
 
     public PowderCoating.Core.Enums.ReworkStatus Status { get; set; }
     public string StatusDisplay { get; set; } = string.Empty;
@@ -511,6 +512,11 @@ public class CreateReworkRecordDto
     public decimal EstimatedReworkCost { get; set; }
     public bool IsBillableToCustomer { get; set; }
     public string? BillingNotes { get; set; }
+
+    // Rework job creation (opt-in)
+    public bool CreateReworkJob { get; set; }
+    public List<int>? ReworkJobItemIds { get; set; }  // null = not creating a job
+    public PowderCoating.Core.Enums.ReworkPricingType? ReworkPricingType { get; set; }
 }
 
 public class UpdateReworkRecordDto

src/PowderCoating.Application/Mappings/JobProfile.cs

@@ -196,7 +196,9 @@ public class JobProfile : Profile
             .ForMember(dest => dest.JobItemDescription,
                       opt => opt.MapFrom(src => src.JobItem != null ? src.JobItem.Description : null))
             .ForMember(dest => dest.ReworkJobNumber,
-                      opt => opt.MapFrom(src => src.ReworkJob != null ? src.ReworkJob.JobNumber : null));
+                      opt => opt.MapFrom(src => src.ReworkJob != null ? src.ReworkJob.JobNumber : null))
+            .ForMember(dest => dest.ReworkPricingType,
+                      opt => opt.MapFrom(src => src.ReworkPricingType));
 
         // Job → JobDto (rework fields)
         // (IsReworkJob and OriginalJobId map by convention; OriginalJobNumber needs explicit map — handled in controller)