feat: integrate rate limiting and enhance security features

- Added @convex-dev/rate-limiter dependency to manage request limits effectively.
- Implemented rate limiting configurations for IPs, users, and endpoints to prevent abuse and enhance security.
- Introduced new security analysis endpoint to detect potential attacks based on incoming requests.
- Updated backend schema to include rate limit configurations and various cyber attack types for improved incident tracking.
- Enhanced existing security functions to incorporate rate limiting checks, ensuring robust protection against brute force and other attacks.

scripts/ativar_venv.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Script para ativar o ambiente virtual para testes de segurança
+# Uso: source ativar_venv.sh
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+VENV_DIR="$SCRIPT_DIR/venv_seguranca"
+
+if [ ! -d "$VENV_DIR" ]; then
+    echo "📦 Criando ambiente virtual..."
+    cd "$SCRIPT_DIR"
+    python3 -m venv venv_seguranca
+    source venv_seguranca/bin/activate
+    pip install requests
+    echo "✅ Ambiente virtual criado e dependências instaladas"
+else
+    source "$VENV_DIR/bin/activate"
+    echo "✅ Ambiente virtual ativado"
+    echo "📍 Para executar os testes:"
+    echo "   python3 teste_seguranca.py"
+fi
+
+
+
+