[Feature]: Use SyncFunc or AsyncFunc Nodes

[msaeedsaeedi]

As a frontend engineer
I need to use syncFunc or asyncFunc nodes to link one event to multiple endpoints
So that I can manage complex event handling

Details and Assumptions

• Allows using syncFunc/asyncFunc nodes to connect events to multiple endpoints.
• API: NestJS manages function nodes via /board/functions.
• Database: Stores nodes in the functions table in Supabase.
• Assumptions: Nodes have attributes (callers, calls).

Acceptance Criteria

Feature: Use SyncFunc or AsyncFunc Nodes

Scenario: Link an event to multiple endpoints
Given the user is logged in and on the Integration View
When the user drags a syncFunc node and connects an event to multiple endpoints
Then the node displays (callers, calls) in a settings panel

Implementation Notes

• API endpoint: POST /board/functions to create a node.
• Database: Insert into functions table.