fix: improve error handling in admin pages to show user-friendly error messages

- Add error display to help questions new/edit pages
- Improve error visibility in admin-badges, admin-applications, admin-logs, admin-users pages
- Update createHelpQuestion action to properly handle and display unique name collisions and database errors
- Add user-friendly error messages to admin error handling
- Enhances admin page error reporting for better user experience

src/app/admin/help-questions/[id]/page.tsx

@@ -7,10 +7,13 @@ export const dynamic = "force-dynamic";
 
 export default async function EditHelpQuestion({
   params,
+  searchParams,
 }: {
   params: Promise<{ id: string }>;
+  searchParams: Promise<{ error?: string }>;
 }) {
   const { id } = await params;
+  const { error } = await searchParams;
   let entry: Awaited<
     ReturnType<typeof prisma.websiteHelpCenterCategories.findUnique>
   > = null;
@@ -29,6 +32,11 @@ export default async function EditHelpQuestion({
         <Link href="/admin/help-questions">← Help Center</Link>
       </p>
       <h1>Edit help-center entry</h1>
+      {error ? (
+        <p className="muted" style={{ marginBottom: "1rem", color: "#dc2626" }}>
+          Error: {error}
+        </p>
+      ) : null}
       <form action={updateHelpQuestion} className="card" style={{ display: "grid", gap: "0.6rem" }}>
         <input type="hidden" name="id" value={String(entry.id)} />
         <input name="name" defaultValue={entry.name} placeholder="Name / title" required maxLength={255} />

src/app/admin/help-questions/new/page.tsx

@@ -1,13 +1,24 @@
 import Link from "next/link";
 import { createHelpQuestion } from "@/actions/admin-help";
 
-export default function NewHelpQuestion() {
+export default async function NewHelpQuestion({
+  searchParams,
+}: {
+  searchParams: Promise<{ error?: string }>;
+}) {
+  const { error } = await searchParams;
+
   return (
     <main>
       <p className="muted">
         <Link href="/admin/help-questions">← Help Center</Link>
       </p>
       <h1>New help-center entry</h1>
+      {error ? (
+        <p className="muted" style={{ marginBottom: "1rem", color: "#dc2626" }}>
+          Error: {error}
+        </p>
+      ) : null}
       <form action={createHelpQuestion} className="card" style={{ display: "grid", gap: "0.6rem" }}>
         <input name="name" placeholder="Name / title" required maxLength={255} />
         <textarea name="content" placeholder="Content" rows={6} required />