refactor(llm): update for new omnillm and observability APIs

- Update imports: opik and phoenix moved to separate repos
  - omniobserve/llmops/opik → go-opik/llmops
  - omniobserve/llmops/phoenix → go-phoenix/llmops
- Update omnillm adapter to use new Providers slice API

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: grokify

llm/adapters/omnillm_adapter.go

@@ -42,10 +42,14 @@ func NewOmniLLMAdapterWithConfig(cfg OmniLLMAdapterConfig) (*OmniLLMAdapter, err
 		return nil, fmt.Errorf("%s API key is required", cfg.ProviderName)
 	}
 
-	// Create OmniLLM config
+	// Create OmniLLM config with new Providers slice API
 	config := omnillm.ClientConfig{
-		Provider:          omnillm.ProviderName(cfg.ProviderName),
-		APIKey:            cfg.APIKey,
+		Providers: []omnillm.ProviderConfig{
+			{
+				Provider: omnillm.ProviderName(cfg.ProviderName),
+				APIKey:   cfg.APIKey,
+			},
+		},
 		ObservabilityHook: cfg.ObservabilityHook,
 	}
 

llm/factory.go

@@ -16,9 +16,9 @@ import (
 	"github.com/agentplexus/agentkit/llm/adapters"
 
 	// Import observability providers (driver registration via init())
+	_ "github.com/agentplexus/go-opik/llmops"
+	_ "github.com/agentplexus/go-phoenix/llmops"
 	_ "github.com/agentplexus/omniobserve/llmops/langfuse"
-	_ "github.com/agentplexus/omniobserve/llmops/opik"
-	_ "github.com/agentplexus/omniobserve/llmops/phoenix"
 )
 
 // ModelFactory creates LLM models based on configuration.