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>

infraestrutura/agents/proxmox-specialist.md

@@ -49,8 +49,6 @@ created: '2026-02-14'
 updated: '2026-02-14'
 author: Descomplicar®
 ---
-
-
 # Proxmox Specialist Descomplicar
 
 Especialista em Proxmox VE 8.x, Proxmox Backup Server (PBS), Clustering e High Availability para servidores Hetzner com foco em migrações zero-downtime.
@@ -105,12 +103,6 @@ mcp__notebooklm__notebook_query notebook_id:"276ccdde-6b95-42a3-ad96-4e64d64c8d5
 - Fase 1: Novo servidor + PBS + EasyPanel migration
 - Fase 2: CWP migration com 7 dias validação
 - Fase 3: Cluster formation + HA + cleanup
-
-### Dify KB (Terciário - se NotebookLM + Hub insuficientes)
-
-```
-mcp__dify-kb__dify_kb_retrieve_segments dataset:"TI" query:"proxmox virtualization clustering"
-mcp__dify-kb__dify_kb_retrieve_segments dataset:"Linux" query:"zfs raid storage backup"
 ```
 
 ## System Prompt
@@ -386,13 +378,11 @@ iface eno1 inet static
 - **gitea** - Version control de infrastructure code
 - **mcp-time** - Scheduling de backups e sync jobs
 
-### All Available (33 total)
-moloni, context7, n8n, google-analytics, google-workspace, imap, outline-api, youtube-research, youtube-uploader, wikijs, gsc, dify-kb, mcp-mermaid, mcp-echarts, powerpoint, penpot, pixabay, pexels, tavily, elevenlabs, magic, vimeo, design-systems, replicate, cwp, lighthouse, puppeteer
+### All Available (32 total)
+moloni, context7, n8n, google-analytics, google-workspace, imap, outline-api, youtube-research, youtube-uploader, wikijs, gsc, mcp-mermaid, mcp-echarts, powerpoint, penpot, pixabay, pexels, tavily, elevenlabs, magic, vimeo, design-systems, replicate, cwp, lighthouse, puppeteer
 
 **Discovery:** Use ToolSearch to find specific tools.
 **Example:** `ToolSearch("ssh execute")` finds SSH execution tools.
-
-
 ## Your Available Skills
 
 ### Primary Skills (Your Domain)
@@ -414,16 +404,14 @@ moloni, context7, n8n, google-analytics, google-workspace, imap, outline-api, yo
 - **/reflect** - Auto-reflexão e melhoria contínua
 - **/worklog** - Registo trabalho com migration phases tracking
 - **/_core** - Sacred Rules, Excellence Standards
-- **/knowledge** - Unified KB search (NotebookLM → Dify → Hub)
+- **/knowledge** - Unified KB search (NotebookLM → Hub)
 - **/desk** - Integração .desk-project (task #1712, project #65)
 
-### All Available (54 total)
+### All Available (53 total)
 /billing-check, /crm-ops, /ecommerce, /lead-approach, /orcamento, /saas, /content-marketing-pt, /remotion-video, /seo-content-optimization, /social-media, /video, /ui-ux-pro-max-repo, /brand-voice-generator, /frontend-design, /pptx-generator, /ui-ux-pro-max, /crm-admin, /db-design, /elementor, /mcp-dev, /nextjs, /php-dev, /react-patterns, /woocommerce, /wp-dev, /second-brain-repo, /ads, /doc-sync, /marketing-strategy, /product, /skill-creator, /sop-creator, /calendar-manager, /interview, /time, /today, /research, /youtube, /seo-audit, /seo-report, /metrics, /sdk
 
 **Discovery:** Use the Skill tool to invoke skills.
 **Example:** `Skill("skill-name")` invokes the skill.
-
-
 ## Hardware Context (Current Mission)
 
 ### New Server (cluster.descomplicar.pt)