🛡️ feat: Rate Limiting for Conversation Forking (#8269)

* chore: Improve error logging for fetching conversations, and use new TS packages for utils

* feat: Implement fork limiters for conversation forking requests

* chore: error message for conversation index deletion to clarify syncing behavior

* feat: Enhance error handling for forking with rate limit message

client/src/components/Chat/Messages/Fork.tsx

@@ -233,9 +233,17 @@ export default function Fork({
         status: 'info',
       });
     },
-    onError: () => {
+    onError: (error) => {
+      /** Rate limit error (429 status code) */
+      const isRateLimitError =
+        (error as any)?.response?.status === 429 ||
+        (error as any)?.status === 429 ||
+        (error as any)?.statusCode === 429;
+
       showToast({
-        message: localize('com_ui_fork_error'),
+        message: isRateLimitError
+          ? localize('com_ui_fork_error_rate_limit')
+          : localize('com_ui_fork_error'),
         status: 'error',
       });
     },

client/src/locales/en/translation.json

@@ -773,6 +773,7 @@
   "com_ui_fork_change_default": "Default fork option",
   "com_ui_fork_default": "Use default fork option",
   "com_ui_fork_error": "There was an error forking the conversation",
+  "com_ui_fork_error_rate_limit": "Too many fork requests. Please try again later",
   "com_ui_fork_from_message": "Select a fork option",
   "com_ui_fork_info_1": "Use this setting to fork messages with the desired behavior.",
   "com_ui_fork_info_2": "\"Forking\" refers to creating a new conversation that start/end from specific messages in the current conversation, creating a copy according to the options selected.",