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.

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

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

.claude/commands/workflow/tools/test-context-gather.md

@@ -86,6 +86,7 @@ if (file_exists(testContextPath)) {
 ```javascript
 Task(
   subagent_type="test-context-search-agent",
+  run_in_background=false,
   description="Gather test coverage context",
   prompt=`
 You are executing as test-context-search-agent (.claude/agents/test-context-search-agent.md).