feat(agent,server): v0.2.7 - mu-plugin WordPress robuste, réparation wp-config, proxy cookies/headers

- Agent: mu-plugin embarqué amélioré (HTTPS forcé, filtres URL, localhost:port)
- Agent: suppression des WP_HOME/WP_SITEURL hardcodés au démarrage des instances
- Server/proxy: envoi X-Forwarded-Port, réécriture headers/body élargie
- Server/proxy: sanitization des Set-Cookie (Secure, SameSite, Domain)
- Dashboard: version agent 0.2.7, action Supprimer complète
- Cleanup: binaires agent 0.2.3-0.2.6 remplacés par 0.2.7

server/app/dashboard/download/page.tsx

@@ -1,6 +1,6 @@
 import { Card, CardHeader, CardTitle, CardContent } from "@/components/ui/card";
 
-const AGENT_VERSION = "0.2.3";
+const AGENT_VERSION = "0.2.7";
 
 export const dynamic = "force-dynamic";
 

server/app/dashboard/instances/InstanceActions.tsx

@@ -8,11 +8,19 @@ export default function InstanceActions({ instanceId, status }: { instanceId: st
 
   async function action(type: string) {
     setLoading(type);
-    await fetch("/api/instances", {
-      method: "PATCH",
-      headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({ id: instanceId, action: type }),
-    });
+    if (type === "delete") {
+      if (!confirm("Voulez-vous vraiment supprimer cette instance ?")) {
+        setLoading(null);
+        return;
+      }
+      await fetch(`/api/instances?id=${instanceId}`, { method: "DELETE" });
+    } else {
+      await fetch("/api/instances", {
+        method: "PATCH",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ id: instanceId, action: type }),
+      });
+    }
     setLoading(null);
     window.location.reload();
   }
@@ -32,6 +40,9 @@ export default function InstanceActions({ instanceId, status }: { instanceId: st
       <Button size="sm" variant="outline" onClick={() => action("reset")} disabled={!!loading}>
         {loading === "reset" ? "..." : "Réinitialiser"}
       </Button>
+      <Button size="sm" variant="destructive" onClick={() => action("delete")} disabled={!!loading}>
+        {loading === "delete" ? "..." : "Supprimer"}
+      </Button>
     </div>
   );
 }