update ejs to 6.0.1, prettier to 3.8.4

Dependencies updated:
- ejs: ^3.1.10 → ^6.0.1 (major)
- prettier: 2.8.2 → 3.8.4 (major)

Also apply prettier 3 reformatting to 3 files:
.github/workflows/deploy.yml, docker-compose.yml, src/css/styles.css

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GuohL8tJ69VYYsXaCALzoA

Author: jamescodesthings

.github/workflows/deploy.yml

@@ -2,7 +2,7 @@ name: Build and Deploy
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
   build-and-deploy:

docker-compose.yml

@@ -35,7 +35,7 @@ services:
     volumes:
       - ./public:/var/public
     healthcheck:
-      test: "nc -z localhost 8080 || exit 1"
+      test: 'nc -z localhost 8080 || exit 1'
       interval: 10s
       timeout: 5s
       retries: 5

package-lock.json

@@ -15,10 +15,10 @@
   },
   "dependencies": {
     "debug": "^4.4.3",
-    "ejs": "^3.1.10",
+    "ejs": "^6.0.1",
     "showdown": "^2.1.0"
   },
   "devDependencies": {
-    "prettier": "2.8.2"
+    "prettier": "3.8.4"
   }
 }