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/kilo-gateway.js

@@ -0,0 +1,34 @@
+export default {
+  id: "kilo-gateway",
+  alias: "kgw",
+  aliases: [
+    "kilo-gateway",
+    "kilogateway",
+  ],
+  uiAlias: "kgw",
+  category: "freeTier",
+  display: {
+    name: "Kilo Gateway",
+    icon: "login",
+    color: "#8B5CF6",
+    textIcon: "KG",
+    website: "https://kilo.ai",
+    notice: {
+      apiKeyUrl: "https://kilo.ai/dashboard?tab=apiKeys",
+    },
+  },
+  authType: "apikey",
+  authModes: ["apikey"],
+  transport: {
+    baseUrl: "https://api.kilo.ai/api/gateway/chat/completions",
+    validateUrl: "https://api.kilo.ai/api/gateway/models",
+  },
+  models: [
+    { id: "kilo-auto/free", name: "Kilo Auto Free", contextLength: 256000 },
+    { id: "nvidia/nemotron-3-super-120b-a12b:free", name: "Nemotron 3 Super 120B (Free)", contextLength: 262144 },
+    { id: "nvidia/nemotron-3-ultra-550b-a55b:free", name: "Nemotron 3 Ultra 550B (Free)", contextLength: 1000000 },
+    { id: "kwaipilot/kat-coder-pro-v2.5:free", name: "Kat Coder Pro v2.5 (Free)", contextLength: 256000 },
+    { id: "kilo-auto/frontier", name: "Kilo Auto Frontier", contextLength: 1000000 },
+    { id: "kilo-auto/balanced", name: "Kilo Auto Balanced", contextLength: 1000000 },
+  ],
+};