Fix syntax errors in MapView.vue and improve backend production robustness (CORS, DB URL, auto-migrations, and seeding)

frontend/src/style.css

@@ -1,7 +1,22 @@
 @import "tailwindcss";
 
-/* Global styles are now managed in App.vue and component-specific styles. 
-   Tailwind v4 handles utility classes automatically. */
+@theme {
+  --color-primary: #fee715;
+  --color-primary-hover: #e5cf12;
+  --color-bg-hud: #0F1115;
+  --color-card-hud: #1C1F26;
+  --font-space: "Space Grotesk", sans-serif;
+}
+
+/* Global styles */
 * {
   box-sizing: border-box;
 }
+
+body {
+  margin: 0;
+  padding: 0;
+  background-color: #0F1115;
+  color: white;
+  font-family: "Space Grotesk", sans-serif;
+}