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>

wordpress/skills/wp-update/SKILL.md

@@ -1,13 +1,7 @@
 ---
 name: wp-update
-description: WordPress core, plugins, and themes update management. Safely updates
-  WordPress components with backups. Use when user mentions "wordpress update", "wp
-  update", "update plugins", "update themes", "wordpress maintenance".
-author: Descomplicar® Crescimento Digital
-version: 1.2.0
-quality_score: 75
-user_invocable: true
-desk_task: 1553
+description: Actualização segura de WordPress core, plugins e temas em todos os sites CWP. Inclui backups pré-actualização, verificação pós-actualização e relatório de estado.
+disable-model-invocation: true
 ---
 
 # /wp-update - Actualização WordPress