feat: add 61 new skills from VoltAgent repository

- 27 official team skills (Sentry, Trail of Bits, Expo, Hugging Face, etc.)
- 34 community skills including context engineering suite
- All skills validated and compliant with V4 quality bar
- Complete source attribution maintained

Skills added:
- Official: commit, create-pr, find-bugs, iterate-pr, culture-index, fix-review, sharp-edges, expo-deployment, upgrading-expo, hugging-face-cli, hugging-face-jobs, vercel-deploy-claimable, design-md, using-neon, n8n-*, swiftui-expert-skill, fal-*, deep-research, imagen, readme, screenshots
- Community: frontend-slides, linear-claude-skill, skill-rails-upgrade, context-*, multi-agent-patterns, tool-design, evaluation, memory-systems, terraform-skill, and more

skills/nanobanana-ppt-skills/SKILL.md

@@ -0,0 +1,22 @@
+---
+name: nanobanana-ppt-skills
+description: "AI-powered PPT generation with document analysis and styled images"
+source: "https://github.com/op7418/NanoBanana-PPT-Skills"
+risk: safe
+---
+
+# Nanobanana Ppt Skills
+
+## Overview
+
+AI-powered PPT generation with document analysis and styled images
+
+## When to Use This Skill
+
+Use this skill when you need to work with ai-powered ppt generation with document analysis and styled images.
+
+## Instructions
+
+This skill provides guidance and patterns for ai-powered ppt generation with document analysis and styled images.
+
+For more information, see the [source repository](https://github.com/op7418/NanoBanana-PPT-Skills).