chore(release): v1.29.3 — hydration and micronutrients surface

Fluid intake and device-recorded vitamins/minerals get a home: a dashboard water tile with quick-add, and a Nutrients page under Insights showing hydration over the last month, caffeine, and the micronutrients with data — each against its reference intake as context. Manual and device-synced water coexist via a source-aware day-total key.

docs/api/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: HealthLog API
-  version: 1.29.2
+  version: 1.29.3
   description: >-
     Self-hosted personal-health-tracking PWA — public API surface for the iOS native client and external ingest.