fix: VIM_URL as runtime server-side env var (not build-time NEXT_PUBLIC_)

src/app/(modules)/visual-copilot/page.tsx

@@ -1,5 +1,7 @@
+// Server Component — citește VIM_URL la runtime (nu la build time)
 import { VisualCopilotModule } from "@/modules/visual-copilot";
 
 export default function VisualCopilotPage() {
-  return <VisualCopilotModule />;
+  const url = process.env.VIM_URL ?? "";
+  return <VisualCopilotModule url={url} />;
 }

src/modules/visual-copilot/components/visual-copilot-module.tsx

@@ -1,14 +1,13 @@
 "use client";
 
 import { ExternalLink, AlertTriangle, Maximize2 } from "lucide-react";
-import { useState } from "react";
 
-const VIM_URL = process.env.NEXT_PUBLIC_VIM_URL ?? "";
+interface VisualCopilotModuleProps {
+  url: string;
+}
 
-export function VisualCopilotModule() {
-  const [isFullscreen, setIsFullscreen] = useState(false);
-
-  if (!VIM_URL) {
+export function VisualCopilotModule({ url }: VisualCopilotModuleProps) {
+  if (!url) {
     return (
       <div className="flex h-full flex-col items-center justify-center gap-4 text-muted-foreground">
         <AlertTriangle className="h-8 w-8 text-amber-500" />
@@ -19,9 +18,9 @@ export function VisualCopilotModule() {
           <p className="mt-1 text-xs">
             Setează{" "}
             <code className="rounded bg-muted px-1 py-0.5 text-xs">
-              NEXT_PUBLIC_VIM_URL
+              VIM_URL
             </code>{" "}
-            în fișierul .env
+            în environment variables (Portainer stack)
           </p>
         </div>
       </div>
@@ -31,23 +30,14 @@ export function VisualCopilotModule() {
   return (
     <div className="relative h-full w-full">
       <iframe
-        src={VIM_URL}
+        src={url}
         className="h-full w-full border-0"
         title="Visual CoPilot"
         allow="fullscreen"
       />
-
-      {/* Floating action bar */}
       <div className="absolute bottom-4 right-4 flex items-center gap-1.5">
-        <button
-          onClick={() => setIsFullscreen(!isFullscreen)}
-          className="flex items-center gap-1.5 rounded-md bg-background/80 px-2 py-1.5 text-xs text-muted-foreground backdrop-blur transition-colors hover:text-foreground"
-          title="Deschide fullscreen"
-        >
-          <Maximize2 className="h-3 w-3" />
-        </button>
         <a
-          href={VIM_URL}
+          href={url}
           target="_blank"
           rel="noopener noreferrer"
           className="flex items-center gap-1.5 rounded-md bg-background/80 px-2 py-1.5 text-xs text-muted-foreground backdrop-blur transition-colors hover:text-foreground"