[2.30.0] Add orchestrating-swarms skill, /slfg command, and swarm mode (#151)

- New skill: orchestrating-swarms — comprehensive guide to multi-agent
  swarm orchestration with TeammateTool operations, spawn backends,
  task dependencies, and orchestration patterns
- New command: /slfg — swarm-enabled variant of /lfg that parallelizes
  review + browser tests after work phase, then resolves and records video
- Updated /workflows:work with optional Swarm Mode section
- Added missing skills (brainstorming, orchestrating-swarms) to README
- Added missing commands (/lfg, /slfg) to README

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -11,8 +11,8 @@
   "plugins": [
     {
       "name": "compound-engineering",
-      "description": "AI-powered development tools that get smarter with every use. Make each unit of engineering work easier than the last. Includes 29 specialized agents, 24 commands, and 16 skills.",
-      "version": "2.29.0",
+      "description": "AI-powered development tools that get smarter with every use. Make each unit of engineering work easier than the last. Includes 29 specialized agents, 25 commands, and 16 skills.",
+      "version": "2.30.0",
       "author": {
         "name": "Kieran Klaassen",
         "url": "https://github.com/kieranklaassen",