Add profile image system with MinIO storage

- Implement ProfileAvatar component for user avatars
- Integrate MinIO for profile image storage and management
- Add profile image fields to Member type definition
- Create server utilities and API endpoints for image handling
- Replace basic avatar icon with new ProfileAvatar in dashboard
- Update sharp dependency to v0.34.3

layouts/dashboard.vue

@@ -120,9 +120,14 @@
       <v-menu offset-y>
         <template v-slot:activator="{ props }">
           <v-btn icon v-bind="props" color="white">
-            <v-avatar size="36" color="white">
-              <v-icon color="primary">mdi-account</v-icon>
-            </v-avatar>
+            <ProfileAvatar 
+              :member-name="user?.name"
+              :first-name="user?.firstName"
+              :last-name="user?.lastName"
+              size="small"
+              :lazy="false"
+              show-border
+            />
           </v-btn>
         </template>