Validate product sync against live Holochain conductor

[Soushi888]

Summary

Test the existing "Sync to Nondominium" button on the product form against a running Holochain conductor + hc-http-gw. The sync code exists in models/product_sync.py but has never been validated against a live instance.

Tasks

• Start Holochain conductor + hc-http-gw (see Set up Holochain dev environment for PoC testing #2)
• Configure nondominium.config in Odoo Settings with correct DNA hash
• Create a test product in Odoo
• Click "Sync to Nondominium" and verify success notification
• Verify ResourceSpecification created on Holochain (curl GET to check)
• Verify EconomicResource created on Holochain (curl GET to check)
• Verify nondominium_spec_hash and nondominium_resource_hash populated on the product record
• Test error handling: sync with gateway down → verify error notification
• Test partial sync: what happens if spec creates but resource fails

Dependencies

• Set up Holochain dev environment for PoC testing #2 (Holochain dev environment)
• Verify hc-http-gw response parsing and field name alignment #3 (response parsing verified)

Acceptance Criteria

• Single product syncs successfully from Odoo to Nondominium
• Hashes stored on product record in Odoo
• Error cases handled gracefully with user notifications
• Round-trip verified: synced product queryable via hc-http-gw