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>

tests/PowderCoating.UnitTests/QuoteAndReworkControllerFlowTests.cs

@@ -150,13 +150,18 @@ public class QuoteAndReworkControllerFlowTests
             DefectDescription = "Thin coverage on one edge",
             DiscoveredBy = ReworkDiscoveredBy.Internal,
             DiscoveredDate = new DateTime(2026, 5, 9),
-            EstimatedReworkCost = 65m
+            EstimatedReworkCost = 65m,
+            CreateReworkJob = true,
+            ReworkJobItemIds = [10],
+            ReworkPricingType = ReworkPricingType.CustomerFull
         });
 
         Assert.IsType<JsonResult>(result);
 
         var reworkJob = await context.Jobs.SingleAsync(j => j.IsReworkJob);
         Assert.Equal(1, reworkJob.OriginalJobId);
+        Assert.Equal("JOB-2605-0001-R1", reworkJob.JobNumber);
+        Assert.Equal(2, reworkJob.JobStatusId); // first non-Pending status
 
         var reworkItem = await context.JobItems.SingleAsync(i => i.JobId == reworkJob.Id);
         Assert.True(reworkItem.IsSalesItem);
@@ -284,13 +289,9 @@ public class QuoteAndReworkControllerFlowTests
             CompanyName = "Acme Fabrication"
         });
 
-        context.JobStatusLookups.Add(new JobStatusLookup
-        {
-            Id = 1,
-            CompanyId = 1,
-            StatusCode = "PENDING",
-            DisplayName = "Pending"
-        });
+        context.JobStatusLookups.AddRange(
+            new JobStatusLookup { Id = 1, CompanyId = 1, StatusCode = "PENDING",        DisplayName = "Pending",        DisplayOrder = 1 },
+            new JobStatusLookup { Id = 2, CompanyId = 1, StatusCode = "IN_PREPARATION", DisplayName = "In Preparation", DisplayOrder = 2 });
 
         context.JobPriorityLookups.Add(new JobPriorityLookup
         {