Configure PromptKit transient retries

internal/core/config/config.go

@@ -14,9 +14,10 @@ type Config struct {
 }
 
 type PromptKitConfig struct {
-	ProfileDir   string                       `json:"profile_dir,omitempty"`
-	ProfileFile  string                       `json:"profile_file,omitempty"`
-	LocalBackend *PromptKitLocalBackendConfig `json:"local_backend,omitempty"`
+	ProfileDir       string                       `json:"profile_dir,omitempty"`
+	ProfileFile      string                       `json:"profile_file,omitempty"`
+	TransientRetries int                          `json:"transient_retries"`
+	LocalBackend     *PromptKitLocalBackendConfig `json:"local_backend,omitempty"`
 }
 
 type PromptKitLocalBackendConfig struct {
@@ -29,7 +30,10 @@ type ConcurrencyConfig struct {
 	StageWorkers map[string]int `json:"stage_workers"`
 }
 
-const defaultLLMConcurrency = 16
+const (
+	defaultLLMConcurrency   = 16
+	defaultTransientRetries = 2
+)
 
 type OutputConfig struct {
 	Directory string `json:"directory"`
@@ -55,6 +59,7 @@ type DebugConfig struct {
 
 func Default() Config {
 	return Config{
+		PromptKit: PromptKitConfig{TransientRetries: defaultTransientRetries},
 		Pipelines: map[string]pipeline.PipelineProfile{},
 		Concurrency: ConcurrencyConfig{
 			TotalLLM:     defaultLLMConcurrency,