feat(docker): Add Consul to docker-compose and update documentation

- Add Consul service to docker-compose.yml
  - Running in dev mode on port 8500
  - Health checks configured
  - Persistent volume for data
  - Web UI available at http://localhost:8500/ui

- Update SUMMARY.md
  - Document Consul setup in docker-compose
  - Add Consul verification steps
  - Update prerequisites to include Docker Compose
  - Add note about Consul Web UI

- Remove obsolete version field from docker-compose.yml

docs/content/stories/epic2/SUMMARY.md

@@ -141,9 +141,10 @@ auth:
 ## Prerequisites
 
 1. **PostgreSQL** running and accessible
-2. **Consul** running (for service discovery, optional but recommended)
+2. **Consul** running (for service discovery, required for service registry)
 3. **Go 1.24+** (or use `nix-shell` for development environment)
 4. **NixOS** (optional, for `shell.nix` development environment)
+5. **Docker and Docker Compose** (for running PostgreSQL and Consul)
 
 ## Building the Services
 
@@ -175,21 +176,35 @@ go build ./cmd/audit-service
 
 ## Running the Services
 
-### 1. Start PostgreSQL
+### 1. Start PostgreSQL and Consul
 ```bash
-# Using docker-compose (if available)
-docker-compose up -d postgres
+# Using docker-compose (recommended)
+docker-compose up -d postgres consul
 
-# Or start PostgreSQL manually
-# Ensure database 'goplt' exists with user 'goplt' and password 'goplt_password'
+# Verify containers are running
+docker-compose ps
+
+# Check logs
+docker-compose logs postgres
+docker-compose logs consul
 ```
 
-### 2. Start Consul (Optional)
-```bash
-# Using docker-compose
-docker-compose up -d consul
+The docker-compose.yml includes:
+- **PostgreSQL**: Available at `localhost:5432`
+  - Database: `goplt`
+  - User: `goplt`
+  - Password: `goplt_password`
+- **Consul**: Available at `localhost:8500`
+  - Running in dev mode
+  - Web UI: http://localhost:8500/ui (for viewing registered services)
+  - API: http://localhost:8500/v1
 
-# Or start Consul manually
+### Alternative: Manual Setup
+```bash
+# Start PostgreSQL manually
+# Ensure database 'goplt' exists with user 'goplt' and password 'goplt_password'
+
+# Start Consul manually
 consul agent -dev
 ```