feat(jobs): complete workspace draft parity

JobTrackerApi.Tests/JobApplicationsEndpointBehaviorTests.cs

@@ -225,7 +225,7 @@ public sealed class JobApplicationsEndpointBehaviorTests
     }
 
     [Fact]
-    public async Task Update_drops_invalid_salary_period_and_negative_values()
+    public async Task Update_normalizes_salary_and_preserves_the_separate_application_answer()
     {
         await using var db = CreateDb();
         var company = new Company { Name = "Acme", OwnerUserId = "user-1" };
@@ -241,6 +241,7 @@ public sealed class JobApplicationsEndpointBehaviorTests
             SalaryMax = 60000m,
             SalaryCurrency = "NOK",
             SalaryPeriod = "year",
+            Notes = "Old human note\n\n<<<APPLICATION_ANSWER_DRAFT>>>\nSaved answer\n<<<END_APPLICATION_ANSWER_DRAFT>>>",
             Job = new Job { CompanyId = company.Id, JobTitle = "Backend Dev", Source = "nav", CountryCode = "NO" },
         };
         db.JobApplications.Add(job);
@@ -261,7 +262,7 @@ public sealed class JobApplicationsEndpointBehaviorTests
             SalaryPeriod: "fortnight",
             NextAction: null,
             FollowUpAt: null,
-            Notes: null,
+            Notes: "Updated human note",
             Description: null,
             TranslatedDescription: null,
             DescriptionLanguage: null,
@@ -281,6 +282,8 @@ public sealed class JobApplicationsEndpointBehaviorTests
         Assert.Null(saved.SalaryMax);
         Assert.Null(saved.SalaryCurrency);
         Assert.Null(saved.SalaryPeriod);
+        Assert.Equal("Updated human note", JobApplicationHelpers.RemoveSavedApplicationAnswerDraft(saved.Notes));
+        Assert.Equal("Saved answer", JobApplicationHelpers.ExtractSavedApplicationAnswerDraft(saved.Notes));
         var opportunity = await db.Jobs.SingleAsync();
         Assert.Equal(saved.JobTitle, opportunity.JobTitle);
         Assert.Null(opportunity.SalaryMin);