Change employment overlaps to informational only

- Rename "Employment Overlap" to "Concurrent Employment"
- Remove score penalty for overlaps (often legitimate: part-time, consulting, transitions)
- Change severity from Warning/Critical to Info
- Update scoring explanation to note overlaps are not penalised

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/TrueCV.Infrastructure/Jobs/ProcessCVCheckJob.cs

@@ -397,22 +397,17 @@ public sealed class ProcessCVCheckJob
             });
         }
 
-        // Penalty for overlaps (only if > 2 months)
+        // Note overlaps - these are often legitimate (part-time, consulting, transitions)
+        // Only flag as informational, no score penalty
         foreach (var overlap in timeline.Overlaps)
         {
-            var excessMonths = Math.Max(0, overlap.Months - 2); // Allow 2 month transition, prevent negative
-            var overlapPenalty = excessMonths * OverlapMonthPenalty;
-            score -= overlapPenalty;
-
-            var severity = overlap.Months >= 6 ? FlagSeverity.Critical : FlagSeverity.Warning;
-
             flags.Add(new FlagResult
             {
                 Category = FlagCategory.Timeline.ToString(),
-                Severity = severity.ToString(),
-                Title = "Employment Overlap",
-                Description = $"{overlap.Months} month overlap between '{overlap.Company1}' and '{overlap.Company2}' ({overlap.OverlapStart:MMM yyyy} to {overlap.OverlapEnd:MMM yyyy})",
-                ScoreImpact = -overlapPenalty
+                Severity = FlagSeverity.Info.ToString(),
+                Title = "Concurrent Employment",
+                Description = $"Worked at both '{overlap.Company1}' and '{overlap.Company2}' simultaneously for {overlap.Months} months ({overlap.OverlapStart:MMM yyyy} to {overlap.OverlapEnd:MMM yyyy})",
+                ScoreImpact = 0
             });
         }
 

src/TrueCV.Web/Components/Pages/Report.razor

@@ -200,7 +200,7 @@
                                 <li>Director claims not verified: <strong>-20 pts</strong> each</li>
                                 <li>Employment before company existed: <strong>-20 pts</strong></li>
                                 <li>Employment gaps: <strong>-1 to -10 pts</strong> per gap</li>
-                                <li>Excessive overlaps: <strong>-2 pts</strong> per month</li>
+                                <li>Concurrent employment is noted but not penalised</li>
                             </ul>
                         </div>
                     </div>