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/knowledge/datasets.json

@@ -1,5 +1,5 @@
 {
-  "description": "Knowledge sources (NotebookLM + Dify KB) for Infrastructure domain",
+  "description": "Knowledge sources for Infrastructure domain",
   "sources": {
     "notebooklm": {
       "description": "NotebookLM - conhecimento curado profundo via Gemini 2.5 RAG (PRIMARIO)",
@@ -13,50 +13,14 @@
             "centos",
             "web",
             "panel"
-          ],
-          "maps_from_dify": "CWP Centos Web Panel"
+          ]
         },
         {
           "id": "f9a79b5a-649f-4443-afaf-7ff562b6c2e7",
           "title": "Cloud e Infraestrutura TI",
-          "topics": [],
-          "maps_from_dify": "TI"
-        }
-      ]
-    },
-    "dify_kb": {
-      "description": "Dify KB - datasets tematicos (FALLBACK)",
-      "query_tool": "mcp__dify-kb__dify_kb_retrieve_segments",
-      "datasets": [
-        {
-          "id": "b2a4d2c5-fe55-412c-bc28-74dbd611905d",
-          "name": "CWP Centos Web Panel",
-          "priority": 1,
-          "document_count": 10,
-          "word_count": 599430
-        },
-        {
-          "id": "7f63ec0c-6321-488c-b107-980140199850",
-          "name": "TI",
-          "priority": 1,
-          "document_count": 115,
-          "word_count": 29448495
-        },
-        {
-          "id": "bde4eddd-4618-402c-8bfb-bb947ed9219d",
-          "name": "Linux",
-          "priority": 2,
-          "document_count": 4,
-          "word_count": 336446
-        },
-        {
-          "id": "cc7f000a-ad86-49b6-b59b-179e65f8a229",
-          "name": "AWS",
-          "priority": 2,
-          "document_count": 14,
-          "word_count": 5125632
+          "topics": []
         }
       ]
     }
   }
-}
+}