fix(orchestration): Correctly propagate model selection options to GMI

The AgentOSOrchestrator was incorrectly assigning model selection options from the AgentOSInput to metadata.processingOptions instead of the expected metadata.options when constructing
  the GMITurnInput.

  This caused the GMI to fail with a GMIError: Could not determine modelId for LLM call as it could not find the specified model preferences.

  This change corrects the property name to options within the gmiInputMetadata object in constructGMITurnInput, ensuring that model selection parameters like preferredModelId are
  correctly propagated to the GMI for processing.

Author: Victor-Evogor

src/api/AgentOSOrchestrator.ts

@@ -870,7 +870,7 @@ export class AgentOSOrchestrator {
     const gmiInputMetadata: Record<string, any> = {
         gmiId: gmi.getGMIId(),
         // Pass relevant options to GMI if it needs them
-        processingOptions: options,
+        options: options,
         // User API keys are handled by GMIManager when fetching/creating GMI,
         // but can be passed in metadata if GMI needs them per-turn for some reason.
         userApiKeys: input.userApiKeys,