refactor: привести кодовую базу в соответствие с канонами bible

- 400 → 422 для всех ошибок валидации входных данных (handlers: export, quote, sync, vendor_spec, partnumber_books, pricelist)
- SQL-запросы вынесены из handlers в localdb (partnumber_books, pricelist, support_bundle); ValidateMariaDBConnection перенесён в internal/db/validate.go
- List-ответы унифицированы: ключ items, поля total_count/page/per_page/total_pages (component, pricelist, partnumber_books); шаблоны обновлены
- Молчаливые ошибки заменены на slog.Warn/Error (support_bundle, vendor_spec, component, configuration, local_configuration, localdb)
- N+1 запросы устранены: batch-запросы в export.go и vendor_workspace_import.go
- fmt.Println → slog в cmd/ (qfs, migrate, migrate_ops_projects, migrate_project_updated_at)
- Заголовки recovery/verify добавлены во все 28 SQL-миграций
- Добавлены bible-local/runtime-flows.md и bible-local/decisions/
- Обновлён субмодуль bible до v0.2.0-13

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/services/component.go

@@ -2,6 +2,7 @@ package services
 
 import (
 	"fmt"
+	"log/slog"
 	"strings"
 
 	"git.mchus.pro/mchus/quoteforge/internal/models"
@@ -41,10 +42,11 @@ func ParsePartNumber(lotName string) (category, model string) {
 }
 
 type ComponentListResult struct {
-	Components []ComponentView `json:"components"`
-	Total      int64           `json:"total"`
+	Items      []ComponentView `json:"items"`
+	TotalCount int64           `json:"total_count"`
 	Page       int             `json:"page"`
 	PerPage    int             `json:"per_page"`
+	TotalPages int             `json:"total_pages"`
 }
 
 type ComponentView struct {
@@ -63,10 +65,11 @@ func (s *ComponentService) List(filter repository.ComponentFilter, page, perPage
 	// Components should be loaded via /api/sync/components first
 	if s.componentRepo == nil {
 		return &ComponentListResult{
-			Components: []ComponentView{},
-			Total:      0,
+			Items:      []ComponentView{},
+			TotalCount: 0,
 			Page:       page,
 			PerPage:    perPage,
+			TotalPages: 1,
 		}, nil
 	}
 
@@ -107,11 +110,16 @@ func (s *ComponentService) List(filter repository.ComponentFilter, page, perPage
 		views[i] = view
 	}
 
+	totalPages := int((total + int64(perPage) - 1) / int64(perPage))
+	if totalPages < 1 {
+		totalPages = 1
+	}
 	return &ComponentListResult{
-		Components: views,
-		Total:      total,
+		Items:      views,
+		TotalCount: total,
 		Page:       page,
 		PerPage:    perPage,
+		TotalPages: totalPages,
 	}, nil
 }
 
@@ -126,8 +134,10 @@ func (s *ComponentService) GetByLotName(lotName string) (*ComponentView, error)
 		return nil, err
 	}
 
-	// Track usage
-	_ = s.componentRepo.IncrementRequestCount(lotName)
+	// Track usage (best-effort)
+	if err := s.componentRepo.IncrementRequestCount(lotName); err != nil {
+		slog.Warn("component: could not increment request count", "lot", lotName, "err", err)
+	}
 
 	view := &ComponentView{
 		LotName:         c.LotName,