[bug] Notion REST healthcheck needs a pinned Notion-Version header

[thesobercoder]

Executor version

Current self-hosted build

How do you run Executor?

Self-hosted

Integration involved

Notion REST API / OpenAPI integration

What happened

The Notion REST connection works for ordinary calls when the request includes:

Notion-Version: 2025-09-03

However, the connection healthcheck is not configured automatically. The UI cannot pin this required header as a healthcheck argument, so the connection initially reports unknown with No health check configured.

The healthcheck can be repaired manually with this configuration:

{
  "operation": "users.getSelf",
  "args": {
    "Notion-Version": "2025-09-03"
  },
  "identityField": "id"
}

Note that the healthcheck must use Executor's generated tool name users.getSelf, not the raw OpenAPI operation ID get-self.

What I expected

The Notion REST integration should have a zero-config healthcheck, or the UI should allow pinning required header arguments for the selected healthcheck operation.

Steps to reproduce

1. Add the Notion REST OpenAPI integration.
2. Create an API-key connection.
3. Check the connection health.
4. Observe that the healthcheck is missing or fails unless Notion-Version is supplied.

Proposed fix

Ship the Notion integration preset with:

{
  "operation": "users.getSelf",
  "args": {
    "Notion-Version": "2025-09-03"
  },
  "identityField": "id"
}

Alternatively, expose the integration healthcheck setter and pinned header arguments in the UI.