Add a Zed usage handler so connected Zed accounts appear on
/dashboard/quota. Reads GET /client/users/me for plan, edit
predictions, optional hosted model requests and billing-cycle reset.
Render unlimited rows as "N used · Unlimited" instead of 0 / ∞, and
surface overdue-invoice / token-billing messages.
Qwen OAuth flow (portal.qwen.ai) stopped working reliably; drop the
executor, registry entry, OAuth provider/service, token refresh
profile, usage handler, and related test coverage and baselines.
Wire /v1/usages for Kimi (OAuth + API key) and balance API for DeepSeek,
flag both providers with usage/usageApikey, and normalize their quotas
in the dashboard ProviderLimits parser.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Gộp switch 13 nhánh getUsageForProvider thành 1 registry object
(provider → handler), mỗi handler giữ nguyên signature/args qua ctx.
Behavior giữ nguyên (ollama vẫn chỉ nhận accessToken như cũ).
Thêm tests/unit/usage-dispatch.test.js guard dispatch.
Co-authored-by: Cursor <cursoragent@cursor.com>
