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/product/references/prioritization-frameworks.md

@@ -0,0 +1,78 @@
+# Product - Frameworks de Priorizacao
+
+## A. RICE Score (Recomendado)
+
+```
+        Reach x Impact x Confidence
+Score = ----------------------------
+                 Effort
+
+Reach: Quantos users impactados por periodo
+  - Ex: 1000 users/quarter, 500 users/month
+
+Impact: Quanto impacto por user
+  - 3 = Massive impact
+  - 2 = High impact
+  - 1 = Medium impact
+  - 0.5 = Low impact
+  - 0.25 = Minimal impact
+
+Confidence: Certeza das estimativas
+  - 100% = Dados solidos
+  - 80% = Boas evidencias
+  - 50% = Suposicoes educadas
+
+Effort: Person-months para entregar
+  - Ex: 2 person-months, 0.5 person-month
+```
+
+Exemplo Pratico:
+
+| Feature | Reach | Impact | Confidence | Effort | RICE | Prioridade |
+|---------|-------|--------|------------|--------|------|------------|
+| Export PDF | 800/q | 2 | 80% | 1 | 1280 | Alta |
+| Dark mode | 400/q | 0.5 | 100% | 0.5 | 400 | Media |
+| API v2 | 200/q | 3 | 50% | 3 | 100 | Baixa |
+| Search filters | 1000/q | 1 | 80% | 0.5 | 1600 | Alta |
+
+## B. MoSCoW Method
+
+```
+MUST have: Critico para launch (MVP)
+  - Sem isso, produto nao funciona
+  - Legal/compliance obrigatorio
+  - Blocker absoluto
+
+SHOULD have: Importante mas nao critico
+  - Melhora significativamente a experiencia
+  - Workaround existe
+  - Pode ser adiado 1 sprint
+
+COULD have: Nice to have
+  - Pequena melhoria
+  - Se sobrar tempo
+  - Low effort/low impact
+
+WON'T have (agora): Fora de scope
+  - Para proxima versao
+  - Nao alinhado com objectivo actual
+```
+
+## C. Value vs Effort Matrix
+
+```
+         | HIGH VALUE
+         |
+    II   |   I
+  Quick  |  Big
+  Wins   |  Bets
+  (DO)   | (PLAN)
+---------+---------
+   III   |   IV
+  Fill   |  Money
+  Ins    |  Pit
+ (LATER) | (AVOID)
+         |
+         | LOW VALUE
+    LOW EFFORT -> HIGH EFFORT
+```