fix(career): preserve reviewed profile values

Keep extraction heuristics out of manual save, version, and import paths so reviewed locations, URLs, dates, and languages round-trip unchanged.

JobTrackerApi/Services/CareerProfileService.cs

@@ -53,7 +53,7 @@ public sealed class CareerProfileService : ICareerProfileService
         AssignStableIds(profile);
         NormalizeDates(profile);
 
-        var json = StructuredCvProfileJson.Serialize(profile);
+        var json = StructuredCvProfileJson.SerializePersisted(profile);
 
         var existing = await _db.CareerProfiles.FirstOrDefaultAsync(x => x.OwnerUserId == ownerUserId, cancellationToken);
         if (existing is null)
@@ -109,7 +109,7 @@ public sealed class CareerProfileService : ICareerProfileService
         // Backfill a pre-Phase-3 profile from its blob, once, before reading relationally.
         if (!hasRelational && !string.IsNullOrWhiteSpace(profile.ProfileJson))
         {
-            var fromBlob = StructuredCvProfileJson.Deserialize(profile.ProfileJson);
+            var fromBlob = StructuredCvProfileJson.DeserializePersisted(profile.ProfileJson);
             AssignStableIds(fromBlob);
             NormalizeDates(fromBlob);
             await SyncRelationalChildrenAsync(profile.Id, ownerUserId, fromBlob, cancellationToken);
@@ -142,7 +142,7 @@ public sealed class CareerProfileService : ICareerProfileService
         if (experiences.Count == 0 && education.Count == 0 && skills.Count == 0 && projects.Count == 0
             && certifications.Count == 0 && languages.Count == 0 && !string.IsNullOrWhiteSpace(profile.ProfileJson))
         {
-            return StructuredCvProfileJson.Deserialize(profile.ProfileJson);
+            return StructuredCvProfileJson.DeserializePersisted(profile.ProfileJson);
         }
 
         return CareerProfileMapper.ToStructured(profile.LongTailJson, experiences, education, skills, projects, certifications, languages);
@@ -172,7 +172,7 @@ public sealed class CareerProfileService : ICareerProfileService
 
         // Re-save the old snapshot as a new version. Non-destructive: the current state stays in
         // history, so a restore can itself be undone by restoring the version before it.
-        var restored = StructuredCvProfileJson.Deserialize(target.ProfileJson);
+        var restored = StructuredCvProfileJson.DeserializePersisted(target.ProfileJson);
         return await SaveVersionAsync(ownerUserId, restored, $"restore:v{version}", cancellationToken);
     }