Function bind_slack_handle

bind_slack_handle(
    storage: SqliteStorage,
    username: string,
    slack_handle: string,
): Promise<{ user: User; fingerprint: string }>
Record a slack handle binding after the operator has confirmed the fingerprint out-of-band.

Callers (the CLI) are responsible for showing the fingerprint and collecting the confirmation; this function only persists the result.
Parameters
- storage: SqliteStorage
- username: string
  local user to bind
- slack_handle: string
  e.g. 'bob' (no leading @)
Returns Promise<{ user: User; fingerprint: string }>
- Defined in core/slack/identity.js:44