Add request API key support

types.go

@@ -60,6 +60,7 @@ type RunRequest struct {
 	PromptID      string
 	PromptVersion string
 	ProfileID     string
+	APIKey        string `json:"-"`
 	Inputs        map[string]ArtifactRef
 	Vars          map[string]string
 	Execution     *ExecutionTargetOverride
@@ -232,6 +233,7 @@ type GenerateRequest struct {
 	Target           ExecutionTarget         `json:"target"`
 	TargetPresence   ExecutionTargetPresence `json:"target_presence"`
 	StructuredOutput *StructuredOutputSpec   `json:"structured_output,omitempty"`
+	APIKey           string                  `json:"-"`
 }
 
 // GenerateResponse is returned by an injected LLM client.