Wiki/grafo: graphify + wiki-brain setup compartilhado pra equipe

CLAUDE.md com 3 secoes (navegacao, regras de sessao, doc pra equipe).
Vault Obsidian/Brain/ commitado pra time editar conhecimento curado.
graphify-out/ no gitignore (regeneravel via /graphify src/).
Binarios do Obsidian.exe ignorados, so vault Brain/ vai pro repo.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Obsidian/Brain/wiki/index.md

@@ -0,0 +1,27 @@
+# Wiki Index
+
+This is the catalog of every page in your wiki. Claude updates it automatically.
+
+**Pattern:** `- [[Page Name]] — one-line summary`
+
+---
+
+## Entities
+
+_(people, places, organizations, products — pages that describe a thing)_
+
+## Concepts
+
+_(ideas, frameworks, patterns, principles — pages that describe a concept)_
+
+## Sources
+
+_(summaries of specific sources you've ingested)_
+
+## Analyses
+
+_(synthesized answers to questions you've asked, filed back as pages)_
+
+---
+
+*This index is maintained by Claude via `/wiki-brain`. Do not edit by hand unless you know what you're doing.*