feat: refactor 30+ skills to Anthropic progressive disclosure pattern

- All SKILL.md files now <500 lines (avg reduction 69%)
- Detailed content extracted to references/ subdirectories
- Frontmatter standardised: only name + description (Anthropic standard)
- New skills: brand-guidelines, spec-coauthor, report-templates, skill-creator
- Design skills: anti-slop guidelines, premium-proposals reference
- Removed non-standard frontmatter fields (triggers, version, author, category)

Plugins affected: infraestrutura, marketing, dev-tools, crm-ops, gestao,
core-tools, negocio, perfex-dev, wordpress, design-media

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

marketing/skills/social-media/references/plataformas-formatos.md

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+# Plataformas e Formatos 2026
+
+## Instagram
+
+| Formato | Dimensoes | Duracao | Uso | Alcance Medio |
+|---------|-----------|---------|-----|---------------|
+| **Feed** | 1080x1080 (1:1) ou 1080x1350 (4:5) | - | Conteudo evergreen | 10-20% followers |
+| **Stories** | 1080x1920 (9:16) | 15s/slide | Daily engagement, polls | 5-10% followers |
+| **Reels** | 1080x1920 (9:16) | 15-90s | Crescimento, viral | 50-200% followers |
+| **Carrossel** | 1080x1080 cada | Ate 10 | Tutoriais, antes/depois | 15-25% followers |
+| **IGTV/Video** | 1080x1920 ou 1080x1080 | Ate 60 min | Long-form conteudo | 5-15% followers |
+
+**Algoritmo 2026:**
+- Reels tem 3-5x mais alcance que posts estaticos
+- Primeiros 30 minutos criticos (engagement boost)
+- Shares > Saves > Comments > Likes (ordem importancia)
+- Tempo visualizacao > numero likes
+
+## LinkedIn
+
+| Formato | Dimensoes | Extensao | Uso | Engagement B2B |
+|---------|-----------|----------|-----|----------------|
+| **Post Imagem** | 1200x627 ou 1080x1080 | - | Insights, dicas | 2-5% impressoes |
+| **Carrossel PDF** | 1080x1080 | Ate 300 slides | Guias, infograficos | 3-8% impressoes |
+| **Video** | 1920x1080 (16:9) | Ate 10 min | Tutoriais, interviews | 5-10% impressoes |
+| **Article** | - | 1000-2000 palavras | Thought leadership | 1-3% impressoes |
+| **Poll** | - | 2-4 opcoes | Engagement rapido | 10-20% impressoes |
+
+**Algoritmo 2026:**
+- Primeiros 60 minutos criticos (engage early)
+- Comments com +10 palavras pesam 3x mais
+- Posts nativos > links externos
+- Dwell time (tempo leitura) factor chave
+
+## Facebook
+
+| Formato | Dimensoes | Uso | Alcance Organico 2026 |
+|---------|-----------|-----|----------------------|
+| **Post** | 1200x630 | Updates, promos | 2-5% fans (muito baixo) |
+| **Stories** | 1080x1920 | Daily content | 5-10% fans |
+| **Reels** | 1080x1920 | Crescimento | 20-50% fans |
+| **Cover** | 820x312 (desktop), 640x360 (mobile) | Branding | - |
+| **Grupos** | - | Community building | 50-80% membros |
+
+**Alcance Organico 2026:**
+- Posts normais: 2-5% fans (forcar ads)
+- Reels: Unico formato com alcance organico decente
+- Grupos: Melhor alternativa para engagement
+
+## TikTok
+
+| Formato | Dimensoes | Duracao | Uso | Potencial Viral |
+|---------|-----------|---------|-----|-----------------|
+| **Video** | 1080x1920 (9:16) | 15s a 10 min | Tudo | Muito Alto |
+| **Duracao Ideal** | - | 21-34s | Max retention | - |
+| **Lives** | 1080x1920 | Ate 60 min | Community | Alto engagement |
+
+**Algoritmo TikTok 2026:**
+- TODOS os videos testados (nao precisa seguidores)
+- Completions > Likes (assistir ate final)
+- Re-watches contam 2x
+- Primeiras 3 horas criticas