Merge remote-tracking branch 'origin/master' into gitea/feature/end

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)

open-sse/providers/registry/cloudflare-ai.js

@@ -19,6 +19,8 @@ export default {
     },
   },
   category: "freeTier",
+  authType: "apikey",
+  authModes: ["apikey"],
   hasProviderSpecificData: true,
   transport: {
     baseUrl: "https://api.cloudflare.com/client/v4/accounts/{accountId}/ai/v1/chat/completions",