Add translation key

Author: dmarkey

src/i18n/locales/en/embeddings.json

@@ -47,6 +47,7 @@
 		"openAiCompatibleConfigMissing": "OpenAI Compatible configuration missing for embedder creation",
 		"geminiConfigMissing": "Gemini configuration missing for embedder creation",
 		"mistralConfigMissing": "Mistral configuration missing for embedder creation",
+		"openRouterConfigMissing": "OpenRouter configuration missing for embedder creation",
 		"vercelAiGatewayConfigMissing": "Vercel AI Gateway configuration missing for embedder creation",
 		"invalidEmbedderType": "Invalid embedder type configured: {{embedderProvider}}",
 		"vectorDimensionNotDeterminedOpenAiCompatible": "Could not determine vector dimension for model '{{modelId}}' with provider '{{provider}}'. Please ensure the 'Embedding Dimension' is correctly set in the OpenAI-Compatible provider settings.",