Embed assets and fix offline/sync/pricing issues

internal/services/quote.go

@@ -9,14 +9,14 @@ import (
 )
 
 var (
-	ErrEmptyQuote       = errors.New("quote cannot be empty")
+	ErrEmptyQuote        = errors.New("quote cannot be empty")
 	ErrComponentNotFound = errors.New("component not found")
 	ErrNoPriceAvailable  = errors.New("no price available for component")
 )
 
 type QuoteService struct {
-	componentRepo *repository.ComponentRepository
-	statsRepo     *repository.StatsRepository
+	componentRepo  *repository.ComponentRepository
+	statsRepo      *repository.StatsRepository
 	pricingService *pricing.Service
 }
 
@@ -43,11 +43,11 @@ type QuoteItem struct {
 }
 
 type QuoteValidationResult struct {
-	Valid    bool          `json:"valid"`
-	Items    []QuoteItem   `json:"items"`
-	Errors   []string      `json:"errors"`
-	Warnings []string      `json:"warnings"`
-	Total    float64       `json:"total"`
+	Valid    bool        `json:"valid"`
+	Items    []QuoteItem `json:"items"`
+	Errors   []string    `json:"errors"`
+	Warnings []string    `json:"warnings"`
+	Total    float64     `json:"total"`
 }
 
 type QuoteRequest struct {
@@ -61,6 +61,9 @@ func (s *QuoteService) ValidateAndCalculate(req *QuoteRequest) (*QuoteValidation
 	if len(req.Items) == 0 {
 		return nil, ErrEmptyQuote
 	}
+	if s.componentRepo == nil || s.pricingService == nil {
+		return nil, errors.New("offline mode: quote calculation not available")
+	}
 
 	result := &QuoteValidationResult{
 		Valid:    true,