fix(programmer): day rows — Delta JSON test + non-assignee row gate

- Add Delta JSON happy-path test case to deltaJsonToPlainText tests
- Fix double-row bug: notes-only assignee rows only when userId == assigneeId
- Remove dead code: tautological taskMap.containsKey check in loop
Co-Authored-By: claude-flow <ruv@ruv.net>

lib/utils/programmer_day_rows.dart

@@ -74,8 +74,6 @@ List<DaySheetRow> buildDayRows({
 
   // Process each task
   for (final task in tasks) {
-    if (!taskMap.containsKey(task.id)) continue;
-
     final assigneeId = task.assigneeId;
 
     // Compute daily seconds for this task
@@ -88,12 +86,14 @@ List<DaySheetRow> buildDayRows({
     final userDailySeconds = dailyByAssignee[userId] ?? {};
     final assigneeSeconds = userDailySeconds[day] ?? 0;
 
-    // Check for assignee row: has seconds that day OR authored notes-only log that day
+    // Check for assignee row: has seconds that day OR (is assignee AND authored notes-only log that day)
     final assigneeLogsKey = '${task.id}:$userId';
-    final assigneeLogsThisDay = workLogsByTaskAndAuthor[assigneeLogsKey]
+    final assigneeLogsThisDay = (userId == assigneeId)
+        ? (workLogsByTaskAndAuthor[assigneeLogsKey]
                 ?.where((l) => l.workDate == day && l.minutes == null)
                 .toList() ??
-        [];
+            [])
+        : [];
 
     if (assigneeSeconds > 0 || assigneeLogsThisDay.isNotEmpty) {
       final notes = assigneeLogsThisDay

test/programmer_day_rows_test.dart

@@ -24,6 +24,10 @@ void main() {
       expect(deltaJsonToPlainText('[{invalid json'), '[{invalid json');
     });
 
+    test('Delta JSON with insert is converted to plain text', () {
+      expect(deltaJsonToPlainText('[{"insert":"Hello\\n"}]'), 'Hello');
+    });
+
     test('Delta JSON arrays starting with [ are attempted to be parsed', () {
       // The function attempts to parse JSON that starts with '['
       // If parsing fails, it returns the trimmed string