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>

.claude/skills/bmad-quick-spec/tech-spec-template.md

@@ -0,0 +1,74 @@
+---
+title: '{title}'
+slug: '{slug}'
+created: '{date}'
+status: 'in-progress'
+stepsCompleted: []
+tech_stack: []
+files_to_modify: []
+code_patterns: []
+test_patterns: []
+---
+
+# Tech-Spec: {title}
+
+**Created:** {date}
+
+## Overview
+
+### Problem Statement
+
+{problem_statement}
+
+### Solution
+
+{solution}
+
+### Scope
+
+**In Scope:**
+{in_scope}
+
+**Out of Scope:**
+{out_of_scope}
+
+## Context for Development
+
+### Codebase Patterns
+
+{codebase_patterns}
+
+### Files to Reference
+
+| File | Purpose |
+| ---- | ------- |
+
+{files_table}
+
+### Technical Decisions
+
+{technical_decisions}
+
+## Implementation Plan
+
+### Tasks
+
+{tasks}
+
+### Acceptance Criteria
+
+{acceptance_criteria}
+
+## Additional Context
+
+### Dependencies
+
+{dependencies}
+
+### Testing Strategy
+
+{testing_strategy}
+
+### Notes
+
+{notes}