What type of request is this?

New feature idea

Clear and concise description of the feature you are proposing

Custom Slug: Allow users to manually input a custom suffix for their short link during the note creation process.

Auto-generate: If no custom slug is provided, the system should automatically generate one based on a configurable length (e.g., SHORTENER_SLUG_LEN).

External Integration: Provide support for calling third-party shortener services (such as Sink, Shlink, or Dub) via a standard API or Webhook.

Additional context

No response

Validations

• Check the feature is not already implemented in the project.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Check that the feature is technically feasible and aligns with the project's goals.