feat: rebrand Hemmelig to paste.es for cloudhost.es

- Set Spanish as default language with ephemeral/encrypted privacy focus
- Translate all user-facing strings and legal pages to Spanish
- Replace Norwegian flag with Spanish flag in footer
- Remove Hemmelig/terces.cloud links, add cloudhost.es sponsorship
- Rewrite PrivacyPage: zero data collection, ephemeral design emphasis
- Rewrite TermsPage: Spanish law, RGPD, paste.es/CloudHost.es references
- Update PWA manifest, HTML meta tags, package.json branding
- Rename webhook headers to X-Paste-Event / X-Paste-Signature
- Update API docs title and contact to paste.es / cloudhost.es

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/lib/settings.ts

@@ -0,0 +1,40 @@
+import prisma from './db';
+
+const settingsCache = new Map();
+
+/**
+ * Gets instance settings, fetching from database if not cached.
+ * Use this utility to avoid duplicating the cache-check pattern.
+ */
+export async function getInstanceSettings() {
+    let cachedSettings = settingsCache.get('instanceSettings');
+    if (!cachedSettings) {
+        try {
+            cachedSettings = await prisma.instanceSettings.findFirst();
+            if (cachedSettings) {
+                settingsCache.set('instanceSettings', cachedSettings);
+            }
+        } catch {
+            // Table may not exist yet (fresh database)
+            return null;
+        }
+    }
+    return cachedSettings;
+}
+
+/**
+ * Updates the cached instance settings.
+ * Call this after modifying settings in the database.
+ */
+export function setCachedInstanceSettings(settings: unknown) {
+    settingsCache.set('instanceSettings', settings);
+}
+
+/**
+ * Gets the raw settings cache (for direct access when needed).
+ */
+export function getSettingsCache() {
+    return settingsCache;
+}
+
+export default settingsCache;