1570 Replace inline Ollama key check with Provider.requiresApiKey()

Introduce Provider.requiresApiKey() (backed by a KEYLESS_PROVIDERS set,
mirroring EMBEDDING_PROVIDERS/isEmbeddingSupported) and use it in place of the
inline 'provider != OLLAMA' checks in resolveWithApiKey and the chat client
resolver, so adding another key-less provider is a one-line change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: ivicac

server/ee/libs/platform/platform-ai/platform-ai-agent/platform-ai-agent-service/src/main/java/com/bytechef/ee/platform/ai/agent/catalog/CatalogChatClientResolverImpl.java

@@ -57,8 +57,7 @@ public CatalogChatClientResolverImpl(
 
         String apiKey = aiProviderFacade.getApiKey(provider.getKey(), environment);
 
-        // Ollama runs locally and needs no API key, so a blank key is valid for it; all other providers require one.
-        if ((apiKey == null || apiKey.isBlank()) && provider != Provider.OLLAMA) {
+        if ((apiKey == null || apiKey.isBlank()) && provider.requiresApiKey()) {
             return null;
         }
 

server/ee/libs/platform/platform-configuration/platform-configuration-service/src/main/java/com/bytechef/ee/platform/configuration/facade/AiProviderFacadeImpl.java

@@ -346,8 +346,7 @@ private AiDefaultModelWithApiKeyDTO resolveWithApiKey(AiDefaultModelDTO defaultM
 
         String apiKey = resolveApiKey(provider, environment);
 
-        // Ollama runs locally and needs no API key, so a blank key is valid for it; all other providers require one.
-        if ((apiKey == null || apiKey.isBlank()) && provider != Provider.OLLAMA) {
+        if ((apiKey == null || apiKey.isBlank()) && provider.requiresApiKey()) {
             return null;
         }
 

server/libs/platform/platform-ai/platform-ai-api/src/main/java/com/bytechef/platform/ai/llm/Provider.java

@@ -61,6 +61,9 @@ public enum Provider {
         PERPLEXITY,
         VERTEX_GEMINI);
 
+    // Providers that authenticate against a self-hosted server rather than an API key.
+    public static final Set<Provider> KEYLESS_PROVIDERS = EnumSet.of(OLLAMA);
+
     private final int id;
     private final String label;
     private final String key;
@@ -77,6 +80,10 @@ public boolean isEmbeddingSupported() {
         return EMBEDDING_PROVIDERS.contains(this);
     }
 
+    public boolean requiresApiKey() {
+        return !KEYLESS_PROVIDERS.contains(this);
+    }
+
     public int getId() {
         return id;
     }