- New custom server.js (replaces react-router-serve): ISO timestamps on
all console.* output and on access logs, and skip successful /healthz
polls so real traffic stays visible.
- New ProcessedWebhook table + dedupe helper keyed on
X-Shopify-Webhook-Id; stops Shopify retries from triggering a second
invoice email when the original delivery exceeded the 5s ack timeout.
- orders/create + orders/fulfilled now respond 200 immediately and run
the PDF/email work in the background so we stay under that timeout.
- pickLanguage(): non-German locales (it, fr, es, ...) now default to
English instead of falling back to German. Empty/unknown still maps to
'de' so the per-shop defaultLanguage chain keeps working.
- Tests for pickLanguage and dedupe via node --test + tsx.
Gerhard Scheikl