fix: merge normalized OpenRouter provider settings

extensions/openrouter/index.test.ts

@@ -1145,13 +1145,13 @@ describe("openrouter provider hooks", () => {
     });
   });
 
-  it("merges routing split across trimmed duplicate OpenRouter provider keys", async () => {
+  it("merges routing split across case- and whitespace-equivalent OpenRouter keys", async () => {
     const provider = await registerSingleProviderPlugin(openrouterPlugin);
     const patch = provider.extraParamsForTransport?.({
       config: {
         models: {
           providers: {
-            " openrouter ": {
+            " OpenRouter ": {
               params: {
                 provider: {
                   order: ["anthropic"],

extensions/openrouter/provider-routing.ts

@@ -75,20 +75,11 @@ function resolveOpenRouterProviderConfigParams(
   }
 
   const providers = Object.entries(ctx.config?.models?.providers ?? {});
-  const exactKey = providers.find(([provider]) => provider.trim() === requestedProvider)?.[0];
-  const fallbackKey = providers.find(
-    ([provider]) => normalizeProviderId(provider) === normalizedProvider,
-  )?.[0];
-  const providerKey = (exactKey ?? fallbackKey)?.trim();
-  if (!providerKey) {
-    return undefined;
-  }
-
   // Preserve routing split across normalized duplicates; merge nested params
   // field-wise while allowing later scalar settings to override earlier ones.
   let matchedParams: Record<string, unknown> | undefined;
   for (const [provider, config] of providers) {
-    if (provider.trim() !== providerKey) {
+    if (normalizeProviderId(provider) !== normalizedProvider) {
       continue;
     }
     const params = readRecord(config.params);