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

feat(emailer): add Postmark and Resend providers

backend/scripts/start-infrastructure.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Start the container (if not already running)
+docker start postgres 2>/dev/null || docker run \
+  --cap-add SYS_PTRACE \
+  -e POSTGRES_USER=sa \
+  -e POSTGRES_PASSWORD='P@ssword123!' \
+  -p 5432:5432 \
+  --name postgres \
+  -d postgres:latest
+
+# Wait until Postgres is ready
+echo "Waiting for Postgres to be ready..."
+until docker exec postgres pg_isready -U sa > /dev/null 2>&1; do
+  sleep 1
+done
+
+# Create 'hutopy' database if it doesn't exist
+echo "Ensuring 'hutopy' database exists..."
+docker exec -e PGPASSWORD='P@ssword123!' postgres \
+  psql -U sa -d postgres -tAc "SELECT 1 FROM pg_database WHERE datname='hutopy'" | grep -q 1 || \
+  docker exec -e PGPASSWORD='P@ssword123!' postgres \
+  createdb -U sa hutopy
+
+echo "✅ Done."