feat(i18n): Enhance internationalization support for tool specifications and notifications

- Added TitleKey and DescriptionKey fields to ToolSpec for dynamic localization.
- Updated tool specifications to use i18nx for titles, descriptions, and appendices.
- Refactored notification messages to utilize i18nx for localization in conversation and ticket assignment events.
- Improved localization in the debug dialog component for skill definitions.
- Added new translation keys in English and Chinese for ticket and conversation assignment notifications.
- Ensured that fallback messages are properly localized based on user locale.

web/messages/en-US.json

@@ -53,7 +53,15 @@
     "markAllReadFailed": "Could not mark all notifications as read.",
     "fallbackTitle": "Notification",
     "loading": "Loading notifications",
-    "empty": "No notifications"
+    "empty": "No notifications",
+    "ticketAssignedTitle": "Ticket assigned",
+    "ticketAssignedLine": "Ticket {ticketNo} has been assigned to you.",
+    "assignmentReason": "Assignment reason: {reason}",
+    "conversationTransferredTitle": "Conversation transferred",
+    "conversationAutoAssignedTitle": "Conversation auto-assigned",
+    "conversationAssignedTitle": "Conversation assigned",
+    "conversationAssignedLine": "Conversation #{conversationId} has been assigned to you.",
+    "transferReason": "Transfer reason: {reason}"
   },
   "json": {
     "invalid": "Invalid JSON.",
@@ -1643,6 +1651,13 @@
     "agentRequired": "Select an AI agent.",
     "messageRequired": "Enter a user message.",
     "emptyData": "No data",
+    "skillRouteTrace": "Skill Route Trace",
+    "toolSearchTrace": "Tool Search Trace",
+    "graphToolTrace": "Graph Tool Trace",
+    "traceData": "Trace Data",
+    "resumeToolSearchTrace": "Resume Tool Search Trace",
+    "resumeGraphToolTrace": "Resume Graph Tool Trace",
+    "resumeTraceData": "Resume Trace Data",
     "confirm": "Confirm",
     "reject": "Cancel",
     "debugFailed": "Skill debug failed.",