local dev setup + OPENAI_BASE_URL support + dashboard fix

- CLAUDE.md con arquitectura y comandos del proyecto
- env.example: agregar LIMIT_CONVERSATIONS, MAX_CHARS_PER_MESSAGE, OPENAI_BASE_URL
- docker-compose.override: puerto 3001, extra_hosts para modelo local en Linux
- OpenAI clients: soporte OPENAI_BASE_URL para apuntar a modelo local compatible
- stats.js: sync de órdenes en background, dashboard no bloquea al cargar
- package-lock: dbmate movido a prod dependencies

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -0,0 +1,91 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+```bash
+# Development
+npm run dev          # Start with nodemon auto-reload
+npm start            # Production start
+
+# Testing
+npm test             # Run all tests once (vitest run)
+npm run test:watch   # Watch mode
+npm run test:coverage
+
+# Run a single test file
+npx vitest run src/modules/3-turn-engine/orderModel.test.js
+
+# Database migrations (requires DATABASE_URL in .env)
+npm run migrate:up
+npm run migrate:down
+npm run migrate:redo
+npm run migrate:status
+npm run seed         # Seed a tenant via scripts/seed-tenant.mjs
+```
+
+No lint command is configured.
+
+## Architecture
+
+This is a **multi-tenant WhatsApp e-commerce chatbot** powered by Express.js. Tenants are WooCommerce store operators; their customers interact via WhatsApp to browse products, build carts, and place orders. All database operations are isolated by `tenant_id`.
+
+### Request flow
+
+```
+WhatsApp → Evolution API webhook → /webhook/evolution
+                                         ↓
+                              1-intake: route & normalize message
+                                         ↓
+                              3-turn-engine: NLU → FSM → state handler
+                                         ↓
+                              Response persisted to DB + sent back via Evolution API
+```
+
+### Module structure (numbered layers)
+
+- **`src/modules/0-UI/`** — Admin dashboard: REST controllers for products, conversations, settings, prompts, takeovers, recommendations, aliases. Each controller has a `db/` sub-layer for persistence.
+
+- **`src/modules/1-intake/`** — Message ingestion. Routes: `/simulator` (dev UI), `/webhook/evolution` (WhatsApp). Normalizes incoming messages before passing to turn engine.
+
+- **`src/modules/2-identity/`** — Tenant and user management. Maps WhatsApp numbers to WooCommerce customers. Stores encrypted WooCommerce credentials per tenant in `tenant_ecommerce_config`. Routes WooCommerce webhooks.
+
+- **`src/modules/3-turn-engine/`** — Core logic. NLU classifies intents; FSM transitions states (`IDLE → CART → SHIPPING → PAYMENT → WAITING_WEBHOOKS`). Two NLU versions controlled by `USE_MODULAR_NLU` env flag. Two turn engine versions controlled by `TURN_ENGINE` env flag. State handlers map to FSM states.
+
+- **`src/modules/4-woo-orders/`** — WooCommerce order sync. Fetches and caches customer order history for conversation context.
+
+- **`src/modules/shared/`** — DB pool (PostgreSQL via `pg`), SSE for real-time admin UI updates, WooSnapshot (product catalog cache), debug utilities.
+
+### Key integrations
+
+| System | Purpose | Config |
+|--------|---------|--------|
+| OpenAI | NLU intent classification & response generation | `OPENAI_API_KEY`, `OPENAI_MODEL` |
+| Evolution API | WhatsApp send/receive | `EVOLUTION_API_URL`, `EVOLUTION_API_KEY`, `EVOLUTION_INSTANCE_NAME`, `EVOLUTION_SEND_ENABLED` |
+| WooCommerce REST API | Products, orders, customers | `WOO_*` env vars or per-tenant in DB |
+| PostgreSQL | Primary database | `DATABASE_URL` |
+
+### Database
+
+Migrations live in `db/migrations/` as timestamped SQL files managed by `dbmate`. Key tables:
+- `tenants`, `tenant_config`, `tenant_settings`, `tenant_ecommerce_config`, `tenant_channels`
+- `wa_identity_map` — WhatsApp ↔ WooCommerce customer mapping
+- `wa_conversation_state` — FSM state + context per conversation
+- `wa_messages` — Message history
+- `woo_products_snapshot` — Cached product catalog
+- `prompt_templates` — Versioned LLM prompts
+- `human_takeovers`, `audit_log`, `conversation_runs`
+
+### Feature flags (env vars)
+
+- `TURN_ENGINE=v1|v2` — Which turn engine version to use
+- `USE_MODULAR_NLU=1` — Use modular NLU (prompt templates from DB) vs. v3 hardcoded
+- `EVOLUTION_SEND_ENABLED=1` — Actually send messages to WhatsApp (disable in dev/test)
+- `DEBUG_PERF`, `DEBUG_WOO_HTTP`, `DEBUG_LLM`, `DEBUG_EVOLUTION` — Granular debug logging
+
+### Local development
+
+Copy `env.example` to `.env` and fill in values. Use `docker-compose.override.yaml` for local overrides. Run `docker compose up` to start app + Postgres + Redis. The Dockerfile runs migrations automatically on startup (`migrate:up && seed && start`).
+
+Test files use Vitest with `globals: true` — no need to import `describe`, `it`, `expect`.

docker-compose.override.yaml

@@ -4,7 +4,7 @@
 services:
   app:
     ports:
-      - "3000:3000"
+      - "3001:3000"
     env_file:
       - .env
     environment:
@@ -13,3 +13,5 @@ services:
     volumes:
       - .:/usr/src/app
       - /usr/src/app/node_modules
+    extra_hosts:
+      - "host.docker.internal:host-gateway"

env.example

@@ -42,6 +42,12 @@ EVOLUTION_API_KEY=your-api-key
 EVOLUTION_INSTANCE_NAME=piaf
 EVOLUTION_SEND_ENABLED=0   # 0=solo BD (pruebas), 1=envía a WhatsApp (producción)
 
+# ===================
+# Limits
+# ===================
+LIMIT_CONVERSATIONS=100
+MAX_CHARS_PER_MESSAGE=4000
+
 # ===================
 # Debug Flags (1/true/yes/on para activar)
 # ===================

package-lock.json

@@ -12,6 +12,7 @@
         "ajv": "^8.17.1",
         "cors": "^2.8.5",
         "csv-parse": "^6.1.0",
+        "dbmate": "^2.0.0",
         "dotenv": "^17.2.3",
         "express": "^4.19.2",
         "mysql2": "^3.16.2",
@@ -22,7 +23,6 @@
       },
       "devDependencies": {
         "@vitest/coverage-v8": "^4.0.18",
-        "dbmate": "^2.0.0",
         "nodemon": "^3.0.3",
         "vitest": "^4.0.18"
       }
@@ -94,7 +94,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -108,7 +107,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -122,7 +120,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -136,7 +133,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -150,7 +146,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -164,7 +159,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -178,7 +172,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1466,7 +1459,6 @@
       "version": "2.28.0",
       "resolved": "https://registry.npmjs.org/dbmate/-/dbmate-2.28.0.tgz",
       "integrity": "sha512-kbJ+Aqna/SOsS86RuimX8X/qmo9ItG00EYMUfUQmo3xGoXBac4+PZwOYV0fVPIGakIRljNolhfJySkPAFjmZsA==",
-      "dev": true,
       "license": "MIT",
       "bin": {
         "dbmate": "dist/cli.js"

src/modules/0-ui/handlers/stats.js

@@ -5,10 +5,12 @@ import * as ordersRepo from "../../4-woo-orders/ordersRepo.js";
  * Obtiene estadísticas de pedidos para el dashboard
  */
 export async function handleGetOrderStats({ tenantId }) {
-  // 1. Sincronizar pedidos nuevos de Woo
+  // Sync en background — no bloqueamos el request
-  const syncResult = await syncOrdersIncremental({ tenantId });
+  const syncPromise = syncOrdersIncremental({ tenantId }).catch(err =>
-  
+    console.error("[stats] sync error:", err)
-  // 2. Obtener todas las estadísticas en paralelo
+  );
+
+  // Respondemos con lo que hay en DB mientras sincroniza
   const [monthlyStats, productStats, yoyStats, totals] = await Promise.all([
     ordersRepo.getMonthlyStats({ tenantId }),
     ordersRepo.getProductStats({ tenantId }),
@@ -36,8 +38,8 @@ export async function handleGetOrderStats({ tenantId }) {
     // YoY
     yoy: yoyStats,
     
-    // Info de sync
+    // Info de sync (sincronizando en background)
-    synced: syncResult.synced,
+    synced: 0,
-    total_in_cache: syncResult.total,
+    total_in_cache: totals.total_orders ?? 0,
   };
 }

src/modules/3-turn-engine/nlu/specialists/browse.js

@@ -14,7 +14,8 @@ function getClient() {
     throw new Error("OPENAI_API_KEY is not set");
   }
   if (!_client) {
-    _client = new OpenAI({ apiKey });
+    const baseURL = process.env.OPENAI_BASE_URL || undefined;
+    _client = new OpenAI({ apiKey, ...(baseURL ? { baseURL } : {}) });
   }
   return _client;
 }

src/modules/3-turn-engine/nlu/specialists/orders.js

@@ -17,7 +17,8 @@ function getClient() {
     throw new Error("OPENAI_API_KEY is not set");
   }
   if (!_client) {
-    _client = new OpenAI({ apiKey });
+    const baseURL = process.env.OPENAI_BASE_URL || undefined;
+    _client = new OpenAI({ apiKey, ...(baseURL ? { baseURL } : {}) });
   }
   return _client;
 }

src/modules/3-turn-engine/openai.js

@@ -18,7 +18,8 @@ function getClient() {
   }
   if (_client && _clientKey === apiKey) return _client;
   _clientKey = apiKey;
-  _client = new OpenAI({ apiKey });
+  const baseURL = process.env.OPENAI_BASE_URL || undefined;
+  _client = new OpenAI({ apiKey, ...(baseURL ? { baseURL } : {}) });
   return _client;
 }