feature: Outbox Relay and Kafka Pipeline

docs/vigilcare-clinical-api-prd.md

@@ -12,6 +12,25 @@ This project maps to `sd-mid-009` (Outbox Pattern), `sd-mid-013` (CQRS), `sd-mid
 
 ---
 
+## Local Development Setup
+
+Start all infrastructure services with:
+
+```bash
+docker compose up -d
+```
+
+| Service | Port | Notes |
+|---|---|---|
+| PostgreSQL | 5436 | Database: `vigilcare`, user: `postgres`, password: `password` |
+| Redis | 6382 | No auth |
+| Seq | 5345 | UI at `http://localhost:5345` — login: `admin` / `admin` |
+| Kafka | 9092 | KRaft mode, no Zookeeper |
+
+**Seq first-run:** `SEQ_FIRSTRUN_ADMINPASSWORD=admin` is set in `docker-compose.yml`. This password is only applied on the very first container start (when `/data` volume is empty). After initialization, the password is stored in the volume and this env var is ignored.
+
+---
+
 ## Goals
 
 - Model the observe-alert-acknowledge lifecycle that sits at the center of any clinical monitoring system