feat: biblioteca inteligente libs/ + 5 novas skills (20 skills total)

NOVAS SKILLS:
- next-best-practices      v0.1.0  (CLEAN) — Next.js App Router, RSC, caching, data
- nextjs-patterns          v1.0.0  (CLEAN) — Next.js 15: Server Actions, route handlers
- vite                     v1.0.0  (CLEAN) — env vars, aliases, proxy, CJS compat
- uncle-bob                v1.0.0  (CLEAN) — Clean Code, SOLID, Clean Architecture
- clean-code-review        v1.0.0  (CLEAN) — naming, guard clauses, anti-patterns, refactoring
- vue                      v1.0.0  (CLEAN) — Vue framework
- vue-composition-api-best-practices v1.0.0 (CLEAN) — composables, Pinia, reactivity

BIBLIOTECA INTELIGENTE libs/ (10 dominios, 11 arquivos):
- typescript/ — TS safe + generics gotchas
- react/ — Next.js App Router + Vite config
- vue/ — Composition API + Pinia
- linux/ — System diagnostic cheatsheet
- database/ — PostgreSQL + MySQL patterns
- browser/ — Chromium CLI + E2E testing
- security/ — SAST audit (OWASP Top 10)
- best-practices/ — Clean Code + SOLID + Clean Architecture
- deploy/ — Docker multi-stack + OpenClaw ops
- + INDEX.md como guia de navegacao

.learnings/ — LRN-20260519-003 criado (biblioteca compartilhada)

skills/clean-code-review/README.md

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+# Clean Code
+
+Pragmatic coding standards for writing clean, maintainable code — naming, functions, structure, anti-patterns, and pre-edit safety checks. Every name reveals intent, every function does one thing, and every abstraction earns its place.
+
+## What's Inside
+
+- Core principles (SRP, DRY, KISS, YAGNI, Boy Scout Rule)
+- Naming rules and naming anti-patterns
+- Function rules (small, one thing, few args, guard clauses, parameter objects)
+- Code structure patterns (composition, colocation, extract function)
+- Return type consistency with discriminated unions
+- Anti-patterns catalog (21 common mistakes)
+- Pre-edit safety check (dependency impact analysis)
+- Reference guides for code smells, anti-patterns, and refactoring catalog
+
+## When to Use
+
+- Writing new code and wanting to follow best practices
+- Refactoring existing code for clarity and maintainability
+- Reviewing code quality in pull requests
+- Establishing coding standards for a team
+
+## Installation
+
+```bash
+npx add https://github.com/wpank/ai/tree/main/skills/testing/clean-code
+```
+
+### OpenClaw / Moltbot / Clawbot
+
+```bash
+npx clawhub@latest install clean-code-review
+```
+
+### Manual Installation
+
+#### Cursor (per-project)
+
+From your project root:
+
+```bash
+mkdir -p .cursor/skills
+cp -r ~/.ai-skills/skills/testing/clean-code .cursor/skills/clean-code
+```
+
+#### Cursor (global)
+
+```bash
+mkdir -p ~/.cursor/skills
+cp -r ~/.ai-skills/skills/testing/clean-code ~/.cursor/skills/clean-code
+```
+
+#### Claude Code (per-project)
+
+From your project root:
+
+```bash
+mkdir -p .claude/skills
+cp -r ~/.ai-skills/skills/testing/clean-code .claude/skills/clean-code
+```
+
+#### Claude Code (global)
+
+```bash
+mkdir -p ~/.claude/skills
+cp -r ~/.ai-skills/skills/testing/clean-code ~/.claude/skills/clean-code
+```
+
+## Related Skills
+
+- [code-review](../code-review/) — Structured code review checklists
+- [reducing-entropy](../reducing-entropy/) — Minimize codebase size through simplification
+- [testing-patterns](../testing-patterns/) — Testing patterns for verifying clean code
+
+---
+
+Part of the [Testing](..) skill category.