feat: implement re-authentication flow for Linear and Notion HITL connectors and improve their HITL flow and error states

- Added re-authentication endpoints for Linear and Notion connectors to handle expired authentication.
- Enhanced error handling in issue creation, deletion, and update tools to return appropriate authentication error messages.
- Updated UI components to display authentication status and guide users on re-authentication steps.
- Improved account health checks to ensure valid tokens are used for operations.

surfsense_backend/app/agents/new_chat/tools/linear/create_issue.py

@@ -84,6 +84,15 @@ def create_create_linear_issue_tool(
                 logger.error(f"Failed to fetch creation context: {context['error']}")
                 return {"status": "error", "message": context["error"]}
 
+            workspaces = context.get("workspaces", [])
+            if workspaces and all(w.get("auth_expired") for w in workspaces):
+                logger.warning("All Linear accounts have expired authentication")
+                return {
+                    "status": "auth_error",
+                    "message": "All connected Linear accounts need re-authentication. Please re-authenticate in your connector settings.",
+                    "connector_type": "linear",
+                }
+
             logger.info(f"Requesting approval for creating Linear issue: '{title}'")
             approval = interrupt(
                 {

surfsense_backend/app/agents/new_chat/tools/linear/delete_issue.py

@@ -91,6 +91,14 @@ def create_delete_linear_issue_tool(
 
             if "error" in context:
                 error_msg = context["error"]
+                if context.get("auth_expired"):
+                    logger.warning(f"Auth expired for delete context: {error_msg}")
+                    return {
+                        "status": "auth_error",
+                        "message": error_msg,
+                        "connector_id": context.get("connector_id"),
+                        "connector_type": "linear",
+                    }
                 if "not found" in error_msg.lower():
                     logger.warning(f"Issue not found: {error_msg}")
                     return {"status": "not_found", "message": error_msg}

surfsense_backend/app/agents/new_chat/tools/linear/update_issue.py

@@ -103,6 +103,14 @@ def create_update_linear_issue_tool(
 
             if "error" in context:
                 error_msg = context["error"]
+                if context.get("auth_expired"):
+                    logger.warning(f"Auth expired for update context: {error_msg}")
+                    return {
+                        "status": "auth_error",
+                        "message": error_msg,
+                        "connector_id": context.get("connector_id"),
+                        "connector_type": "linear",
+                    }
                 if "not found" in error_msg.lower():
                     logger.warning(f"Issue not found: {error_msg}")
                     return {"status": "not_found", "message": error_msg}