IAV-1417/refactor(agent-store): centralize error handling, fix subAgent bugs, expand error codes (!410) · Requêtes de fusion · iavia / iavia-front · GitLab

salaheddine zidani a demandé de fusionner feature/IAV-1417 vers develop mai 07, 2026

What

Replaced all inline error fallbacks with handleStoreError() utility
getUserUid() now triggers a snackbar and throws a typed sentinel (USER_UID_NOT_FOUND_IN_STORE) instead of a generic error
Expanded FR error dictionary: new codes for workflow rules, webhook, credentials, platform integrations (Shopify OAuth, WhatsApp, Instagram Pro), fake credentials, and widget domain
Shifted all platform error ranges to avoid collisions

Closes IAV-1417