ux improved

env.example

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+# Botino - Example Environment Variables
+# Copy this file to .env and fill in the values
+
+# ===================
+# Core
+# ===================
+PORT=3000
+TENANT_KEY=piaf
+DATABASE_URL=postgresql://user:password@localhost:5432/botino
+PG_POOL_MAX=10
+PG_IDLE_TIMEOUT_MS=30000
+PG_CONN_TIMEOUT_MS=5000
+APP_ENCRYPTION_KEY=your-32-char-encryption-key-here
+
+# ===================
+# OpenAI
+# ===================
+OPENAI_API_KEY=sk-xxx
+OPENAI_MODEL=gpt-4o-mini
+
+# ===================
+# Turn Engine
+# ===================
+# v1 = pipeline actual (heurísticas + guardrails + LLM plan final)
+# v2 = LLM-first NLU, deterministic core (nuevo motor)
+TURN_ENGINE=v1
+
+# ===================
+# WooCommerce (fallback si falta config por tenant)
+# ===================
+WOO_BASE_URL=https://tu-tienda.com
+WOO_CONSUMER_KEY=ck_xxx
+WOO_CONSUMER_SECRET=cs_xxx
+
+# ===================
+# Debug Flags (1/true/yes/on para activar)
+# ===================
+DEBUG_PERF=0
+DEBUG_WOO_HTTP=0
+DEBUG_WOO_PRODUCTS=0
+DEBUG_LLM=0
+DEBUG_EVOLUTION=0
+DEBUG_DB=0
+DEBUG_RESOLVE=0