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/services/model.js

@@ -17,6 +17,10 @@ for (const entry of REGISTRY) {
   for (const a of entry.aliases || []) ALIAS_TO_PROVIDER_ID[a] = entry.id;
 }
 
+const BUILTIN_MODEL_ALIASES = {
+  "grok-build": "gcli/grok-build",
+};
+
 /**
  * Resolve provider alias to provider ID
  */
@@ -104,7 +108,9 @@ export async function getModelInfoCore(modelStr, aliasesOrGetter) {
       : aliasesOrGetter;
 
   // Resolve alias
-  const resolved = resolveModelAliasFromMap(parsed.model, aliases);
+  const resolved =
+    resolveModelAliasFromMap(parsed.model, aliases) ||
+    resolveModelAliasFromMap(parsed.model, BUILTIN_MODEL_ALIASES);
   if (resolved) {
     return resolved;
   }