# Step 1 — Implementation Detail 1. Mapped HTTPS ingestion, asynchronous processing, transactional state, secrets, observability, and network isolation to managed Google Cloud products. 2. Documented Cloud Run, Pub/Sub, Cloud SQL, Secret Manager, Artifact Registry, VPC, Serverless VPC Access, IAM, Logging, Monitoring, and Trace roles. 3. Added the end-to-end Mermaid data-flow diagram and architecture description. 4. Added Terraform provider configuration, enabled APIs, network connector, SQL resources, Pub/Sub resources, service account, secret, and Cloud Run services.