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>

tsconfig.app.json

@@ -0,0 +1,29 @@
+{
+    "compilerOptions": {
+        "target": "es2020",
+        "useDefineForClassFields": true,
+        "lib": ["ESNext", "DOM", "DOM.Iterable"],
+        "module": "ESNext",
+        "skipLibCheck": true,
+        "esModuleInterop": true,
+
+        /* Bundler mode */
+        "moduleResolution": "bundler",
+        "allowImportingTsExtensions": true,
+        "isolatedModules": true,
+        "moduleDetection": "force",
+        "noEmit": true,
+        "jsx": "react-jsx",
+
+        /* Linting */
+        "strict": true,
+        "noUnusedLocals": true,
+        "noUnusedParameters": true,
+        "noFallthroughCasesInSwitch": true,
+        "baseUrl": ".",
+        "paths": {
+            "@/*": ["src/*"]
+        }
+    },
+    "include": ["src"]
+}