feat: Add Analytics, Odoo Integration, A/B Testing, and Content features

Phase 1 - Analytics y Reportes:
- PostMetrics and AnalyticsReport models for tracking engagement
- Analytics service with dashboard stats, top posts, optimal times
- 8 API endpoints at /api/analytics/*
- Interactive dashboard with Chart.js charts
- Celery tasks for metrics fetch (15min) and weekly reports

Phase 2 - Integración Odoo:
- Lead and OdooSyncLog models for CRM integration
- Odoo fields added to Product and Service models
- XML-RPC service for bidirectional sync
- Lead management API at /api/leads/*
- Leads dashboard template
- Celery tasks for product/service sync and lead export

Phase 3 - A/B Testing y Recycling:
- ABTest, ABTestVariant, RecycledPost models
- Statistical winner analysis using chi-square test
- Content recycling with engagement-based scoring
- APIs at /api/ab-tests/* and /api/recycling/*
- Automated test evaluation and content recycling tasks

Phase 4 - Thread Series y Templates:
- ThreadSeries and ThreadPost models for multi-post threads
- AI-powered thread generation
- Enhanced ImageTemplate with HTML template support
- APIs at /api/threads/* and /api/templates/*
- Thread scheduling with reply chain support

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/models/product.py

@@ -49,6 +49,10 @@ class Product(Base):
     is_featured = Column(Boolean, default=False)  # Producto destacado
     last_posted_at = Column(DateTime, nullable=True)  # Última vez que se publicó
 
+    # Odoo integration
+    odoo_product_id = Column(Integer, nullable=True, unique=True, index=True)
+    odoo_last_synced = Column(DateTime, nullable=True)
+
     # Timestamps
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
@@ -76,5 +80,7 @@ class Product(Base):
             "tags": self.tags,
             "highlights": self.highlights,
             "is_featured": self.is_featured,
-            "created_at": self.created_at.isoformat() if self.created_at else None
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+            "odoo_product_id": self.odoo_product_id,
+            "odoo_last_synced": self.odoo_last_synced.isoformat() if self.odoo_last_synced else None
         }