List plans

Your active plans: residential GB balances and dedicated allocations. The id is what you pass to the endpoints below; label is your own tag (see PATCH), null until you set it. productId is the catalog id you ordered (residential-lite, residential-premium, …) and the field to branch on; product is our internal family name, kept for compatibility, and it can change when we move a product to a new pool. dataGbTotal and dataGbRemaining here are the usage sync's reading, taken about every 30 minutes (a plan bought moments ago shows its full balance until the next pass); GET /plans/{id} refreshes them from the network on the call and carries usageAsOf. The network enforces every plan's cap itself, in real time.