Update myResidences when residence is deleted

DataManager.removeResidence() now also updates _myResidences so the
residence list view updates immediately without requiring a manual refresh.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

composeApp/src/commonMain/kotlin/com/example/casera/data/DataManager.kt

@@ -326,6 +326,13 @@ object DataManager {
         _tasksByResidence.value = _tasksByResidence.value - residenceId
         _documentsByResidence.value = _documentsByResidence.value - residenceId
         _residenceSummaries.value = _residenceSummaries.value - residenceId
+
+        // Also update myResidences so the list view updates immediately
+        _myResidences.value?.let { current ->
+            _myResidences.value = current.copy(
+                residences = current.residences.filter { it.id != residenceId }
+            )
+        }
         persistToDisk()
     }