feat(pgpm): add named volume support for additional services

- Add VolumeMapping interface and volumes field to ServiceDefinition
- Minio now uses a named 'minio-data' volume for persistent /data storage
- Data persists across stop/start and --recreate cycles

Author: pyramation

pgpm/cli/src/commands/docker.ts

@@ -58,12 +58,18 @@ interface PortMapping {
   container: number;
 }
 
+interface VolumeMapping {
+  name: string;
+  containerPath: string;
+}
+
 interface ServiceDefinition {
   name: string;
   image: string;
   ports: PortMapping[];
   env: Record<string, string>;
   command?: string[];
+  volumes?: VolumeMapping[];
 }
 
 const ADDITIONAL_SERVICES: Record<string, ServiceDefinition> = {
@@ -76,6 +82,7 @@ const ADDITIONAL_SERVICES: Record<string, ServiceDefinition> = {
       MINIO_SECRET_KEY: 'minioadmin',
     },
     command: ['server', '/data'],
+    volumes: [{ name: 'minio-data', containerPath: '/data' }],
   },
 };
 
@@ -281,6 +288,12 @@ async function startService(service: ServiceDefinition, recreate: boolean): Prom
     runArgs.push('-p', `${portMapping.host}:${portMapping.container}`);
   }
 
+  if (service.volumes) {
+    for (const vol of service.volumes) {
+      runArgs.push('-v', `${vol.name}:${vol.containerPath}`);
+    }
+  }
+
   runArgs.push(image);
 
   if (command) {