Fix Nitro client launcher: read the nitro_path setting

The /client launcher read a non-existent `nitro_client_url` setting, so it
always fell through to "No client configured" and the client never launched.
Faithful to AtomCMS's NitroController + nitro.blade.php, build the launch URL
as {nitro_path}/index.html?sso=<ticket> plus the toolbar colour params, via a
shared buildNitroClientUrl helper. The Flash launcher's Nitro fallback used the
same dead key and is fixed too.

src/app/client/flash/page.tsx

@@ -3,6 +3,7 @@ import { headers } from "next/headers";
 import { redirect } from "next/navigation";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { issueSsoTicket } from "@/lib/auth/sso-ticket";
+import { buildNitroClientUrl } from "@/lib/services/clients";
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
 import { siteSettings } from "@/lib/services/site-settings";
@@ -14,17 +15,13 @@ export default async function FlashClientPage() {
   if (!session?.user?.id) redirect("/login");
 
   const userId = Number(session.user.id);
-  // The Flash client URL may be stored under either key depending on the
-  // AtomCMS settings seed — try both, then fall back to the Nitro URL so the
-  // launcher still issues a working SSO ticket.
-  const [hotelName, flashUrl, flashUrlAlt, nitroUrl] = await Promise.all([
+  // The Flash client base URL may be stored under either settings key.
+  const [hotelNameRaw, flashUrl, flashUrlAlt] = await Promise.all([
     siteSettings.get("hotel_name", "Atom").catch(() => "Atom"),
     siteSettings.get("flash_client_url", "").catch(() => ""),
     siteSettings.get("client_flash_url", "").catch(() => ""),
-    siteSettings.get("nitro_client_url", "").catch(() => ""),
   ]);
-
-  const clientUrl = flashUrl || flashUrlAlt || nitroUrl || "";
+  const hotelName = hotelNameRaw ?? "Atom";
 
   const hdrs = await headers();
   const ip =
@@ -32,11 +29,15 @@ export default async function FlashClientPage() {
 
   // Faithful to AtomCMS's client controllers: issue (and persist) the SSO ticket
   // on the launcher render, then hand it to the Flash client.
-  const ticket = await issueSsoTicket(prisma, userId, hotelName ?? "Atom", ip);
+  const ticket = await issueSsoTicket(prisma, userId, hotelName, ip);
 
-  const src = clientUrl
-    ? `${clientUrl}${clientUrl.includes("?") ? "&" : "?"}sso=${encodeURIComponent(ticket)}`
+  // Use a configured Flash base URL (with the SSO ticket appended); otherwise
+  // fall back to the Nitro client so the launcher still works.
+  const flashBase = flashUrl || flashUrlAlt || "";
+  const flashSrc = flashBase
+    ? `${flashBase}${flashBase.includes("?") ? "&" : "?"}sso=${encodeURIComponent(ticket)}`
     : "";
+  const src = flashSrc || (await buildNitroClientUrl(ticket));
 
   return (
     <main style={{ display: "grid", gap: "1.5rem" }}>

src/app/client/page.tsx

@@ -3,6 +3,7 @@ import { headers } from "next/headers";
 import { redirect } from "next/navigation";
 import { ContentCard, EmptyState } from "@/components/public/ui";
 import { issueSsoTicket } from "@/lib/auth/sso-ticket";
+import { buildNitroClientUrl } from "@/lib/services/clients";
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
 import { siteSettings } from "@/lib/services/site-settings";
@@ -14,28 +15,22 @@ export default async function ClientPage() {
   if (!session?.user?.id) redirect("/login");
 
   const userId = Number(session.user.id);
-  const [hotelName, clientUrl] = await Promise.all([
-    siteSettings.get("hotel_name", "Atom"),
-    siteSettings.get("nitro_client_url", ""),
-  ]);
+  const hotelName = (await siteSettings.get("hotel_name", "Atom")) ?? "Atom";
 
   const hdrs = await headers();
   const ip =
     hdrs.get("x-forwarded-for")?.split(",")[0]?.trim() ?? hdrs.get("x-real-ip") ?? "0.0.0.0";
 
   // Faithful to AtomCMS's NitroController: issue (and persist) the SSO ticket on
-  // the launcher render, then hand it to the client.
-  const ticket = await issueSsoTicket(prisma, userId, hotelName ?? "Atom", ip);
-
-  const src = clientUrl
-    ? `${clientUrl}${clientUrl.includes("?") ? "&" : "?"}sso=${encodeURIComponent(ticket)}`
-    : "";
+  // the launcher render, then hand it to the Nitro client at {nitro_path}.
+  const ticket = await issueSsoTicket(prisma, userId, hotelName, ip);
+  const src = await buildNitroClientUrl(ticket);
 
   return (
     <main style={{ display: "grid", gap: "1.5rem" }}>
       <ContentCard
         icon="🏨"
-        title={`Launching ${hotelName ?? "Atom"}…`}
+        title={`Launching ${hotelName}…`}
         subtitle="Your single sign-on ticket is ready"
         action={
           <Link href="/client/flash" className="btn btn-outline">
@@ -49,14 +44,15 @@ export default async function ClientPage() {
           <iframe
             title="Hotel client"
             src={src}
-            style={{ width: "100%", height: "80vh", border: 0, borderRadius: 10, display: "block" }}
+            style={{ width: "100%", height: "85vh", border: 0, borderRadius: 10, display: "block" }}
           />
         </ContentCard>
       ) : (
-        <ContentCard icon="🔌" title="No client configured" subtitle="Set nitro_client_url in settings">
+        <ContentCard icon="🔌" title="No client configured" subtitle="Set nitro_path in settings">
           <EmptyState icon="🔌">
-            No client URL configured (set <code>nitro_client_url</code> in settings). SSO ticket
-            issued for this session: <code>{ticket}</code>
+            No Nitro client configured — set <code>nitro_path</code> (e.g.{" "}
+            <code>/Nitro-V3/dist</code>) in the admin settings. SSO ticket issued for this session:{" "}
+            <code>{ticket}</code>
           </EmptyState>
         </ContentCard>
       )}

src/lib/services/clients.ts

@@ -0,0 +1,39 @@
+import { siteSettings } from "./site-settings";
+
+/**
+ * Builds the Nitro client launch URL, faithful to AtomCMS's NitroController +
+ * nitro.blade.php:
+ *
+ *   {nitro_path}/index.html?sso={ticket}&toolbar_primary=…&toolbar_hover=…
+ *                          &toolbar_border=…&toolbar_text=…
+ *
+ * The client files are served by the web root at `nitro_path` (e.g.
+ * `/Nitro-V3/dist`). Returns "" when no `nitro_path` is configured.
+ */
+export async function buildNitroClientUrl(ticket: string): Promise<string> {
+  const [nitroPathRaw, tPrimary, tHover, tBorder, tText, bPrimary, bHover, bBorder, bText] =
+    await Promise.all([
+      siteSettings.get("nitro_path", ""),
+      siteSettings.get("toolbar_primary_color", ""),
+      siteSettings.get("toolbar_hover_color", ""),
+      siteSettings.get("toolbar_border_color", ""),
+      siteSettings.get("toolbar_text_color", ""),
+      siteSettings.get("button_primary_color", ""),
+      siteSettings.get("button_hover_color", ""),
+      siteSettings.get("button_border_color", ""),
+      siteSettings.get("button_text_color", ""),
+    ]);
+
+  const nitroPath = (nitroPathRaw ?? "").trim().replace(/\/+$/, "");
+  if (!nitroPath) return "";
+
+  // Same fallbacks as the blade: toolbar_* color, else button_* color, else the
+  // atom defaults. URLSearchParams encodes "#" → "%23" so the query is valid.
+  const params = new URLSearchParams({ sso: ticket });
+  params.set("toolbar_primary", tPrimary || bPrimary || "#eeb425");
+  params.set("toolbar_hover", tHover || bHover || "#cf9d15");
+  params.set("toolbar_border", tBorder || bBorder || "#cf9d15");
+  params.set("toolbar_text", tText || bText || "#1a1a2e");
+
+  return `${nitroPath}/index.html?${params.toString()}`;
+}

src/lib/services/site-settings.ts

@@ -6,7 +6,7 @@ const DEFAULTS: Record<string, string> = {
   hotel_name: "Atom",
   habbo_imaging_url: "https://www.habbo.com/habbo-imaging/avatarimage",
   logo_url: "",
-  nitro_client_url: "",
+  nitro_path: "",
 };
 
 /**