Get My Orgs

Get list of user's organizations (lightweight).

Used for initial org selection before bootstrap. Does not require X-Org-Id header.

Returns: orgs: Array of lightweight org info

Example response: { "orgs": [ { "org_id": "abc-123", "name": "Acme Corp", "role": "owner", "joined_at": "2025-01-01T00:00:00Z" }, { "org_id": "def-456", "name": "Beta Inc", "role": "member", "joined_at": "2025-01-02T00:00:00Z" } ] }