[FEATURE REQUEST] allow non-configured provider

[dimaslanjaka]

I currently not configure anti-gravity, but i want to check other provider, like NVIDIA, Opencode ZEN usage, but got errror

❌ Failed to query accounts:
ENOENT: no such file or directory, open 'C:\Users\Dell\AppData\Roaming\opencode\antigravity-accounts.json'
undefined is not an object (evaluating 'data.quota_snapshots.premium_interactions')