Shopify and integration with odoo

Full Shopify - Odoo Integration:

- Products & Variants Sync

- Orders Sync (Shopify -> Odoo Sale Orders)

- Customers Sync

- Inventory Sync (Odoo -> Shopify)

- Webhooks Support (Real-time, HMAC verified)

- Scheduled Auto-Sync

- Full Sync Logs & Error Tracking

- Per-connection Company/Branch routing (multi-branch support)

- Manual backfill sync for a specific date/period