listSavingGoals

listSavingGoals — lists the saving goals the caller contributes to.

Authentication: required

listSavingGoals — lists the saving goals the caller contributes to.

Authentication: Required (Bearer token).

Parameters:
- pagination ({limit, skip}, required by schema but ignored server-side).

Returns:
- savingGoals ([]SavingGoal): goals where the caller is a contributor, each with
  a computed goalImageUrl.

Errors:
- unauthenticated: missing or invalid Bearer token.
- internal: store failure.