feat: add design-conformance-reviewer agent, weekly-shipped skill, fix counts and worktree constraints

- Add design-conformance-reviewer agent for reviewing code against design docs
- Add weekly-shipped skill for stakeholder summaries from Jira/GitHub
- Fix component counts across marketplace.json, plugin.json, and README
- Add worktree constraints to ce-review and resolve_todo_parallel skills
- Fix typo in resolve_todo_parallel SKILL.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -1,7 +1,7 @@
 {
   "name": "compound-engineering",
   "version": "2.40.0",
-  "description": "AI-powered development tools. 30 agents, 56 skills, 7 commands, 1 MCP server for code review, research, design, and workflow automation.",
+  "description": "AI-powered development tools. 25 agents, 54 skills, 4 commands, 1 MCP server for code review, research, design, and workflow automation.",
   "author": {
     "name": "Kieran Klaassen",
     "email": "kieran@every.to",