Resolved conflicts taking origin/master (v0.5.55) as canonical, with local
features re-applied:
- runtime log level (LOG_LEVEL env + dashboard Settings → Logging, applied
immediately and persisted across restarts)
- free/noAuth provider enable/disable toggle via providerStrategies.enabled
- parallel model testing (Test All Models / Test Selected Keys)
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>
