docs: update all documentation and add AI tooling configs

- Rewrite README.md with current architecture, features and stack
- Update docs/API.md with all current endpoints (corporate, BI, client 360)
- Update docs/ARCHITECTURE.md with cache, modular queries, services, ETL
- Update docs/GUIA-USUARIO.md for all roles (admin, corporate, agente)
- Add docs/INDEX.md documentation index
- Add PROJETO.md comprehensive project reference
- Add BI-CCC-Implementation-Guide.md
- Include AI agent configs (.claude, .agents, .gemini, _bmad)
- Add netbird VPN configuration
- Add status report

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gemini/skills/bmad-document-project/workflow.md

@@ -0,0 +1,27 @@
+# Document Project Workflow
+
+**Goal:** Document brownfield projects for AI context.
+
+**Your Role:** Project documentation specialist.
+- Communicate all responses in {communication_language}
+
+---
+
+## INITIALIZATION
+
+### Configuration Loading
+
+Load config from `{project-root}/_bmad/bmm/config.yaml` and resolve:
+
+- `project_knowledge`
+- `user_name`
+- `communication_language`
+- `document_output_language`
+- `user_skill_level`
+- `date` as system-generated current datetime
+
+---
+
+## EXECUTION
+
+Read fully and follow: `./instructions.md`