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>

project-manager/skills/spec/SKILL.md

@@ -1,19 +1,7 @@
 ---
 name: spec
-description: >
-  Spec-driven development v1.0. Cria e gere SPEC.md como contrato entre utilizador e Claude.
-  Forca ambos a alinhar antes de codificar. Suporta 3 pesos (light/medium/heavy).
-  Use when "spec", "especificacao", "requisitos", "requirements", "define scope",
-  "approve spec", "check spec", "o que vamos fazer", "antes de comecar".
-author: Descomplicar® Crescimento Digital
-version: 1.0.0
-quality_score: 70
-user_invocable: true
-category: productivity
-tags: [spec, requirements, scope, planning, project, contract]
-desk_project: 65
-allowed-tools: Read, Write, Edit, Bash, Glob, mcp__desk-crm-v3, mcp__mcp-time
-mcps: desk-crm-v3, mcp-time
+description: Spec-driven development — cria e gere SPEC.md como contrato entre utilizador e Claude. Suporta 3 pesos (light/medium/heavy).
+disable-model-invocation: true
 ---
 
 # /spec v1.0 - Spec-Driven Development
@@ -22,6 +10,23 @@ Contrato bilateral: forca o Emanuel a definir o que quer e forca o Claude a prov
 
 **Sem spec aprovado, sem codigo.**
 
+## Contexto NotebookLM
+
+ANTES de executar, consultar notebooks para contexto especializado:
+
+| Notebook | ID | Consultar quando |
+|----------|-----|-----------------|
+| Gestão de Projectos e Agile | 0c9c079c-a426-486c-99eb-1564d42d37ad | Sempre |
+
+```
+mcp__notebooklm__notebook_query({
+  notebook_id: "0c9c079c-a426-486c-99eb-1564d42d37ad",
+  query: "<adaptar ao contexto do pedido do utilizador>"
+})
+```
+
+Integrar insights do NotebookLM nas recomendações e decisões.
+
 ---
 
 ## Comandos