patch astro frontend config file

frontend/astro.config.mjs

@@ -3,20 +3,31 @@ import { defineConfig } from 'astro/config';
 import node from '@astrojs/node';
 import tailwindcss from '@tailwindcss/vite';
 import preact from '@astrojs/preact';
+
 const isDev = process.env.NODE_ENV === 'development';
 
-// https://astro.build/config
+// CSV iz env-a: "localhost,127.0.0.1,serviseri-004.captain.mitteworkspace.cloud"
+const envHosts = (process.env.PUBLIC_ALLOWED_HOSTS || '')
+  .split(',')
+  .map((h) => h.trim())
+  .filter(Boolean);
+
+const allowedHosts = Array.from(
+  new Set(['localhost', '127.0.0.1', ...envHosts])
+);
+
+const hmrHost = process.env.PUBLIC_HMR_HOST || 'localhost';
+const hmrProtocol = process.env.PUBLIC_HMR_PROTOCOL || 'ws';
+const hmrClientPort = Number(process.env.PUBLIC_HMR_CLIENT_PORT || 4321);
+
 export default defineConfig({
   output: 'server',
+  adapter: node({ mode: 'standalone' }),
 
-  adapter: node({
-    mode: 'standalone'
-  }),
-
-  // 🛰️ Postavke razvojnog poslužitelja unutar Docker mreže
   server: {
-    host: true, // Sluša na 0.0.0.0 unutar kontejnera
-    port: 4321, // Unutarnji port kontejnera
+    host: true,
+    port: 4321,
+    allowedHosts,
   },
 
   vite: {
@@ -40,23 +51,23 @@ export default defineConfig({
       assetsInlineLimit: 1024,
     },
     plugins: [tailwindcss()],
-
-    // ⚙️ Ugrađene preporuke za Docker File Watching i Tihi Refresh (HMR)
-    server: isDev ? {
-      hmr: {
-        protocol: 'ws',
-        host: 'localhost',
-        // Mora odgovarati mapiranom portu u docker-compose (4321:4321)
-        clientPort: 4321,
-      },
-      watch: {
-        // Prisiljava Vite na "polling" sustav jer Windows/WSL2 volumeni nekad blokiraju inotify signale
-        usePolling: true,
-        interval: 100,
-      }
-    } : {}, // U produkciji je ovaj blok potpuno prazan radi maksimalnih performansi
+    server: isDev
+      ? {
+          allowedHosts,
+          hmr: {
+            protocol: hmrProtocol, // ws ili wss
+            host: hmrHost,
+            clientPort: hmrClientPort,
+          },
+          watch: {
+            usePolling: true,
+            interval: 100,
+          },
+        }
+      : {
+          allowedHosts,
+        },
   },
 
-  // Redoslijed integracija: Tailwind pa Preact
   integrations: [preact()],
 });