feat: implementacao inicial do sistema LeadRadar

.env.example

@@ -0,0 +1,21 @@
+# LeadRadar Environment Variables Example
+
+# Flask Backend Config
+FLASK_ENV=development
+SECRET_KEY=leadradar-super-secret-key-change-in-prod-32-bytes
+JWT_SECRET_KEY=jwt-super-secret-key-leadradar-2026-32-bytes
+
+# Database Config (PostgreSQL or SQLite fallback)
+# For SQLite: sqlite:///leadradar.db
+# For PostgreSQL: postgresql://leadradar_user:leadradar_pass_2026@localhost:5432/leadradar_db
+DATABASE_URL=sqlite:///leadradar.db
+
+# Scraper Config
+PLAYWRIGHT_HEADLESS=true
+PLAYWRIGHT_TIMEOUT=30000
+
+# Integrations (n8n Webhook Secret)
+N8N_WEBHOOK_SECRET=n8n-webhook-default-secret
+
+# Streamlit Frontend Config
+BACKEND_URL=http://127.0.0.1:5000