Use the canonical product name in public surfaces

Align the README, support bundles, webhook payloads, and updater identity with Multi Hoster Uploader while preserving repository and artifact slugs for compatibility.

lib/support-bundle.js

@@ -201,7 +201,7 @@ function collectFile(filePath, label, maxBytes, options) {
 
 function buildSupportBundleText({ header, sanitizedConfig, files, secrets }) {
   const parts = [];
-  parts.push('=== Multi-Hoster-Upload Support Bundle ===\n');
+  parts.push('=== Multi Hoster Uploader Support Bundle ===\n');
   if (header && typeof header === 'object') {
     for (const [k, v] of Object.entries(header)) parts.push(`${k}: ${v}\n`);
   }

lib/updater.js

@@ -98,7 +98,7 @@ async function fetchGithubReleaseNotes(remoteVersion, fallback = '', fetchImpl =
       headers: {
         Accept: 'application/vnd.github+json',
         'X-GitHub-Api-Version': '2022-11-28',
-        'User-Agent': 'Multi-Hoster-Upload'
+        'User-Agent': 'Multi-Hoster-Uploader'
       }
     });
     if (!response.ok) return String(fallback || '');

lib/webhook-notify.js

@@ -78,7 +78,7 @@ function buildWebhookRequest(url, summary, meta) {
       .join(' · ');
     if (hosterEntries.length > MAX_HOSTER_LINES) hosterLines += ` · …+${hosterEntries.length - MAX_HOSTER_LINES}`;
     const lines = [
-      `**Multi-Hoster-Upload — ${headline}**${m.machineName ? ` (${m.machineName})` : ''}`,
+      `**Multi Hoster Uploader — ${headline}**${m.machineName ? ` (${m.machineName})` : ''}`,
       language === 'de'
         ? `✅ ${succeeded} ok · ❌ ${failed} Fehler${skipped > 0 ? ` · ⏭ ${skipped} übersprungen` : ''} · 📦 ${total} gesamt · ⏱ ${duration}`
         : `✅ ${succeeded} succeeded · ❌ ${failed} failed${skipped > 0 ? ` · ⏭ ${skipped} skipped` : ''} · 📦 ${total} total · ⏱ ${duration}`
@@ -92,7 +92,7 @@ function buildWebhookRequest(url, summary, meta) {
   } else {
     body = JSON.stringify({
       event: 'batch-done',
-      app: 'multi-hoster-upload',
+      app: 'multi-hoster-uploader',
       version: m.appVersion || null,
       machine: m.machineName || null,
       total,