fix(workflows:work): Mark off checkboxes in plan as tasks complete

Added step to update original plan document with completed checkboxes
([ ] → [x]) after each task is finished. Keeps the plan as a living
document showing progress.

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

plugins/compound-engineering/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "compound-engineering",
-  "version": "2.26.4",
+  "version": "2.26.5",
   "description": "AI-powered development tools. 27 agents, 21 commands, 14 skills, 1 MCP server for code review, research, design, and workflow automation.",
   "author": {
     "name": "Kieran Klaassen",