release: v2.35.2 — brainstorm-to-plan traceability

- Strengthen brainstorm intake: thorough read, carry ALL content, reference source inline
- Add origin: frontmatter field to all three plan templates (MINIMAL, MORE, A LOT)
- Rename References to Sources sections, add brainstorm as first entry
- Add brainstorm cross-check checklist in final review step

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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

@@ -1,6 +1,6 @@
 {
   "name": "compound-engineering",
-  "version": "2.35.1",
+  "version": "2.35.2",
   "description": "AI-powered development tools. 29 agents, 22 commands, 19 skills, 1 MCP server for code review, research, design, and workflow automation.",
   "author": {
     "name": "Kieran Klaassen",