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IAV-848/Refactor credential injection (regex → Jackson DOM), add Shopify OAuth, extract workflow helpers

salaheddine zidani a demandé de fusionner feature/IAV-848 vers develop

Summary

Replaces the fragile regex-based credential injection with Jackson DOM parsing, adds Shopify OAuth 2.0 store authorization, and cleans up workflow-related helpers.

What changed

Credential injection refactor — The old approach used 3 regex patterns (regular, escaped, double-escaped JSON) to replace credential IDs in n8n templates. WorkflowCredentialInjector now parses the JSON into a tree, walks each node's credentials block, and sets values directly. Handles embedded JSON via recursive descent. N8nCredentialTypeMapping centralizes type name mappings that were previously duplicated.

Shopify OAuth — Two new endpoints for store authorization. State managed via Caffeine cache (10min TTL). Server holds client credentials. Token stored via N8nService.createCredential().

Workflow creation — WorkflowCreationHelper handles template selection (Shopify vs WooCommerce), webhook path modification, and cleanup. Webhook URLs are config-driven. Prerequisites validated before creation. DB saves reduced from 3 to 1.

Bug fix — mapToN8nFormat() was hardcoded to WOOCOMMERCE for all credential types.

Testing notes

  • Verify credential injection for all 7 integration types
  • Test Shopify OAuth end-to-end with a dev store
  • Test workflow creation with both Shopify and WooCommerce templates
  • Confirm prerequisite validation rejects incomplete configs
  • Interrupt workflow creation → verify cleanup deletes the n8n workflow

Closes IAV-848

Rapports de requête de fusion