chore(providers): use Anthropic Compatible logo

- Update Anthropic Compatible provider configuration to use the new m-variant logo (anthropic-m.png) instead of the standard anthropic.png for consistent branding across the provider icons.
- Target: provider icons

src/app/(dashboard)/dashboard/providers/[id]/page.js

@@ -324,7 +324,7 @@ export default function ProviderDetailPage() {
       return providerInfo.apiType === "responses" ? "/providers/oai-r.png" : "/providers/oai-cc.png";
     }
     if (isAnthropicCompatible) {
-      return "/providers/anthropic.png";
+      return "/providers/anthropic-m.png";
     }
     return `/providers/${providerInfo.id}.png`;
   };

src/app/(dashboard)/dashboard/providers/page.js

@@ -279,7 +279,7 @@ function ApiKeyProviderCard({ providerId, provider, stats }) {
       return provider.apiType === "responses" ? "/providers/oai-r.png" : "/providers/oai-cc.png";
     }
     if (isAnthropicCompatible) {
-      return "/providers/anthropic.png"; // Use Anthropic icon as base
+      return "/providers/anthropic-m.png"; // Use Anthropic icon as base
     }
     return `/providers/${provider.id}.png`;
   };