✨ Update agent guidelines and improve documentation structure. Refactor AGENTS.md to streamline commands and code style guidelines, enhancing clarity and usability. Update README.md with refined NATS consumer configuration details and observability metrics. Modify .gitignore to exclude dynamically generated Prometheus target files. Enhance configuration files for development and production environments, ensuring consistency and clarity in settings.

docs/dev-guide.md

@@ -47,12 +47,8 @@ docker compose -f docker-compose.dev.yml up -d postgres nats nats-box
 
 - The NATS client keeps retrying the connection and automatically reconnects
   when NATS is back.
-- The JetStream consumer detects missing streams/consumers and, in dev/test
-  environments, uses shared `EnsureStream`/`ensureConsumer` logic to
-  auto-recreate them.
-- In production environments, missing streams/consumers are treated as
-  configuration/operational errors and are not auto-recreated; operators
-  should investigate and fix the underlying issue.
+- The JetStream consumer expects streams and consumers to exist.
+- In development, you may need to create them manually or ensure they exist before starting the application.
 
 ### Using Taskfile shortcuts