docs: sync counts and regenerate pages for product team expansion

Update all documentation to reflect 177 skills, 254 tools, 357 references,
16 agents, and 17 commands. Add 4 new skill pages, 1 agent page, and
2 command pages to MkDocs site. Sync Codex (156) and Gemini (218) indexes.

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

mkdocs.yml

@@ -1,6 +1,6 @@
 site_name: Claude Code Skills & Plugins
 site_url: https://alirezarezvani.github.io/claude-skills/
-site_description: "173 production-ready skills, 15 agents, and 15 commands for Claude Code, OpenAI Codex, Gemini CLI, and OpenClaw. Reusable expertise for engineering, product, marketing, compliance, and more."
+site_description: "177 production-ready skills, 16 agents, and 17 commands for Claude Code, OpenAI Codex, Gemini CLI, and OpenClaw. Reusable expertise for engineering, product, marketing, compliance, and more."
 site_author: Alireza Rezvani
 repo_url: https://github.com/alirezarezvani/claude-skills
 repo_name: alirezarezvani/claude-skills
@@ -190,9 +190,13 @@ nav:
       - Overview: skills/product-team/index.md
       - "Agile Product Owner": skills/product-team/agile-product-owner.md
       - "Competitive Teardown": skills/product-team/competitive-teardown.md
+      - "Experiment Designer": skills/product-team/experiment-designer.md
       - "Landing Page Generator": skills/product-team/landing-page-generator.md
+      - "Product Analytics": skills/product-team/product-analytics.md
+      - "Product Discovery": skills/product-team/product-discovery.md
       - "Product Manager Toolkit": skills/product-team/product-manager-toolkit.md
       - "Product Strategist": skills/product-team/product-strategist.md
+      - "Roadmap Communicator": skills/product-team/roadmap-communicator.md
       - "SaaS Scaffolder": skills/product-team/saas-scaffolder.md
       - "UI Design System": skills/product-team/ui-design-system.md
       - "UX Researcher & Designer": skills/product-team/ux-researcher-designer.md
@@ -325,6 +329,7 @@ nav:
     - "CS Growth Strategist": agents/cs-growth-strategist.md
     - "CS Product Manager": agents/cs-product-manager.md
     - "CS Workspace Admin": agents/cs-workspace-admin.md
+    - "CS Product Analyst": agents/cs-product-analyst.md
     - "CS Product Strategist": agents/cs-product-strategist.md
     - "CS Project Manager": agents/cs-project-manager.md
     - "CS Quality & Regulatory": agents/cs-quality-regulatory.md
@@ -338,11 +343,13 @@ nav:
     - "/okr": commands/okr.md
     - "/persona": commands/persona.md
     - "/pipeline": commands/pipeline.md
+    - "/prd": commands/prd.md
     - "/project-health": commands/project-health.md
     - "/retro": commands/retro.md
     - "/rice": commands/rice.md
     - "/saas-health": commands/saas-health.md
     - "/sprint-health": commands/sprint-health.md
+    - "/sprint-plan": commands/sprint-plan.md
     - "/tdd": commands/tdd.md
     - "/tech-debt": commands/tech-debt.md
     - "/user-story": commands/user-story.md