refactor: update dependencies and remove unused code

- Added new dependencies: `adler2`, `crc32fast`, `flate2`, `miniz_oxide`, and `libredox`.
- Updated existing dependencies: `tokio-rustls` to version 0.26.4 and `filetime` to version 0.2.27.
- Removed the `backup.rs` file as it is no longer needed.
- Introduced tests for configuration and credential management.
- Enhanced the `identity` module to generate W3C compliant DID documents.

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

neode-ui/src/locales/en.json

@@ -314,7 +314,7 @@
     "modeEasyDesc": "Goal-based interface. Choose what you want to do, and the system handles the rest.",
     "modePro": "Pro",
     "modeProDesc": "Full control over all services. Configure everything manually with all technical details.",
-    "modeChat": "Chat",
+    "modeChat": "AIUI",
     "modeChatDesc": "Conversational AI interface. Manage your node through natural language. Coming soon."
   },
   "marketplace": {
@@ -353,8 +353,8 @@
     "closeAssistant": "Close AI Assistant",
     "loadingAssistant": "Loading AI assistant...",
     "aiAssistant": "AI Assistant",
-    "notConfigured": "AI Assistant is not yet configured on this node.",
-    "deployCta": "Deploy the AIUI app from the App Store to enable this feature."
+    "notConfigured": "AI Assistant needs to be enabled before use.",
+    "deployCta": "Go to Settings to configure your AI provider API key, then return here to start chatting."
   },
   "web5": {
     "title": "Web5",
@@ -682,6 +682,13 @@
     "rollbackSuccess": "Rolled back to previous version. Service will restart.",
     "rollbackFailed": "Rollback failed."
   },
+  "kiosk": {
+    "pressEsc": "Press ESC to exit",
+    "online": "Online",
+    "offline": "Offline",
+    "escHint": "Press ESC to exit apps",
+    "navHint": "Use arrow keys to navigate"
+  },
   "kioskRecovery": {
     "title": "Archipelago Recovery",
     "subtitle": "Kiosk failsafe — no authentication required",