docs: salvage focused stale PR contributions

- add Vite and Redis pattern skills from closed stale PRs

- add frontend-slides support assets

- port skill-comply runner fixes and LLM prompt/provider regressions

- harden agent frontmatter validation and sync catalog counts

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "ecc",
   "version": "2.0.0-rc.1",
-  "description": "Battle-tested Claude Code plugin for engineering teams — 50 agents, 185 skills, 68 legacy command shims, production-ready hooks, and selective install workflows evolved through continuous real-world use",
+  "description": "Battle-tested Claude Code plugin for engineering teams — 50 agents, 187 skills, 68 legacy command shims, production-ready hooks, and selective install workflows evolved through continuous real-world use",
   "author": {
     "name": "Affaan Mustafa",
     "url": "https://x.com/affaanmustafa"
@@ -23,6 +23,10 @@
     "best-practices"
   ],
   "mcpServers": {},
-  "skills": ["./skills/"],
-  "commands": ["./commands/"]
+  "skills": [
+    "./skills/"
+  ],
+  "commands": [
+    "./commands/"
+  ]
 }