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>

negocio/skills/interview/SKILL.md

@@ -1,13 +1,6 @@
 ---
 name: interview
-description: Technical interview preparation and candidate evaluation. Creates interview
-  questions, evaluates responses, and provides feedback. Use when user mentions "interview",
-  "entrevista", "candidate evaluation", "technical interview", "interview questions".
-author: Descomplicar® Crescimento Digital
-version: 1.0.0
-quality_score: 75
-user_invocable: true
-desk_task: 1473
+description: Preparação de entrevistas técnicas e avaliação de candidatos. Cria perguntas, avalia respostas e fornece feedback.
 ---
 
 # /interview - Entrevista Estruturada de Requisitos
@@ -16,6 +9,25 @@ Skill para clarificar requisitos antes de iniciar trabalho. Reduz ambiguidade e
 
 ---
 
+## Contexto NotebookLM
+
+ANTES de executar, consultar notebooks para contexto especializado:
+
+| Notebook | ID | Consultar quando |
+|----------|-----|-----------------|
+| Estratégia e Empreendedorismo | 79d43410 | Para contexto negócio |
+
+```
+mcp__notebooklm__notebook_query({
+  notebook_id: "79d43410-0e29-4be1-881d-84db6bdc239a",
+  query: "<adaptar ao contexto do pedido do utilizador>"
+})
+```
+
+Integrar insights do NotebookLM nas recomendações e decisões.
+
+---
+
 ## QUANDO USAR
 
 - Início de projecto novo