Add 260+ Claude Code skills from skills.sh

Complete collection of AI agent skills including:
- Frontend Development (Vue, React, Next.js, Three.js)
- Backend Development (NestJS, FastAPI, Node.js)
- Mobile Development (React Native, Expo)
- Testing (E2E, frontend, webapp)
- DevOps (GitHub Actions, CI/CD)
- Marketing (SEO, copywriting, analytics)
- Security (binary analysis, vulnerability scanning)
- And many more...

Synchronized from: https://skills.sh/

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

app-store-changelog/skill.md

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+---
+name: app-store-changelog
+description: Create user-facing App Store release notes by collecting and summarizing all user-impacting changes since the last git tag (or a specified ref). Use when asked to generate a comprehensive release changelog, App Store "What's New" text, or release notes based on git history or tags.
+---
+
+# App Store Changelog
+
+## Overview
+Generate a comprehensive, user-facing changelog from git history since the last tag, then translate commits into clear App Store release notes.
+
+## Workflow
+
+### 1) Collect changes
+- Run `scripts/collect_release_changes.sh` from the repo root to gather commits and touched files.
+- If needed, pass a specific tag or ref: `scripts/collect_release_changes.sh v1.2.3 HEAD`.
+- If no tags exist, the script falls back to full history.
+
+### 2) Triage for user impact
+- Scan commits and files to identify user-visible changes.
+- Group changes by theme (New, Improved, Fixed) and deduplicate overlaps.
+- Drop internal-only work (build scripts, refactors, dependency bumps, CI).
+
+### 3) Draft App Store notes
+- Write short, benefit-focused bullets for each user-facing change.
+- Use clear verbs and plain language; avoid internal jargon.
+- Prefer 5 to 10 bullets unless the user requests a different length.
+
+### 4) Validate
+- Ensure every bullet maps back to a real change in the range.
+- Check for duplicates and overly technical wording.
+- Ask for clarification if any change is ambiguous or possibly internal-only.
+
+## Output Format
+- Title (optional): "What’s New" or product name + version.
+- Bullet list only; one sentence per bullet.
+- Stick to storefront limits if the user provides one.
+
+## Resources
+- `scripts/collect_release_changes.sh`: Collect commits and touched files since last tag.
+- `references/release-notes-guidelines.md`: Language, filtering, and QA rules for App Store notes.