fix: Add run_in_background=false to all agent Task invocations

Ensure all agent executions wait for results before proceeding.
Modified 20 workflow command files with 32 Task call updates.

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

.claude/commands/workflow/lite-execute.md

@@ -333,6 +333,7 @@ Complete each task according to its "Done when" checklist.
 
 Task(
   subagent_type="code-developer",
+  run_in_background=false,
   description=batch.taskSummary,
   prompt=formatBatchPrompt({
     tasks: batch.tasks,