many fixes and improvements - rework for modules/ and common/

feat(emailer): add Postmark and Resend providers

backend/scripts/update-databases.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Usage:
+#   ./update-db.sh Messaging                => applies latest migration
+#   ./update-db.sh Messaging Initial        => updates to a specific migration
+
+MODULE_NAME=$1
+TARGET_MIGRATION=$2  # Optional
+
+if [ -z "$MODULE_NAME" ]; then
+  echo "Usage: $0 <ModuleName> [MigrationName]"
+  exit 1
+fi
+
+UPDATE_COMMAND=(
+  dotnet ef database update
+  --context "Hutopy.Modules.${MODULE_NAME}.Data.${MODULE_NAME}DbContext"
+  --configuration Debug
+)
+
+if [ -n "$TARGET_MIGRATION" ]; then
+  UPDATE_COMMAND+=("$TARGET_MIGRATION")
+fi
+
+"${UPDATE_COMMAND[@]}"