Add explicit LLM concurrency controls

internal/framework/llm/effective_config.go

@@ -21,13 +21,13 @@ type EffectiveConfig struct {
 
 // ResolvePrimaryConfig resolves the primary LLM settings into runtime form.
 func ResolvePrimaryConfig(cfg config.Config) EffectiveConfig {
-	return resolveFromLLMConfig(cfg.PrimaryLLM)
+	return resolveFromLLMConfig(cfg.PrimaryLLM, cfg.TotalLLMConcurrency)
 }
 
 // ResolveValidationConfig resolves validation LLM settings with inheritance
 // from primary values when validation overrides are unset.
 func ResolveValidationConfig(cfg config.Config) EffectiveConfig {
-	return resolveFromLLMConfig(cfg.EffectiveValidationLLMConfig())
+	return resolveFromLLMConfig(cfg.EffectiveValidationLLMConfig(), cfg.EffectiveValidationLLMConcurrency())
 }
 
 // ToInstructorClientConfig converts an effective runtime config into adapter
@@ -44,13 +44,13 @@ func (c EffectiveConfig) ToInstructorClientConfig(mode Mode, httpClient *http.Cl
 	}
 }
 
-func resolveFromLLMConfig(raw config.LLMConfig) EffectiveConfig {
+func resolveFromLLMConfig(raw config.LLMConfig, concurrency int) EffectiveConfig {
 	return EffectiveConfig{
 		APIKey:         strings.TrimSpace(raw.APIKey),
 		Model:          strings.TrimSpace(raw.Model),
 		BaseURL:        strings.TrimSpace(raw.BaseURL),
 		RequestTimeout: time.Duration(raw.TimeoutSeconds) * time.Second,
 		MaxRetries:     raw.MaxRetries,
-		Concurrency:    raw.Concurrency,
+		Concurrency:    concurrency,
 	}
 }