Add vendor workspace import and pricing export workflow

internal/handlers/partnumber_books.go

@@ -3,6 +3,7 @@ package handlers
 import (
 	"net/http"
 	"strconv"
+	"strings"
 
 	"git.mchus.pro/mchus/quoteforge/internal/localdb"
 	"git.mchus.pro/mchus/quoteforge/internal/repository"
@@ -66,6 +67,15 @@ func (h *PartnumberBooksHandler) GetItems(c *gin.Context) {
 	}
 
 	bookRepo := repository.NewPartnumberBookRepository(h.localDB.DB())
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "100"))
+	search := strings.TrimSpace(c.Query("search"))
+	if page < 1 {
+		page = 1
+	}
+	if perPage < 1 || perPage > 500 {
+		perPage = 100
+	}
 
 	// Find local book by server_id
 	var book localdb.LocalPartnumberBook
@@ -74,17 +84,23 @@ func (h *PartnumberBooksHandler) GetItems(c *gin.Context) {
 		return
 	}
 
-	items, err := bookRepo.GetBookItems(book.ID)
+	items, total, err := bookRepo.GetBookItemsPage(book.ID, search, page, perPage)
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
 
 	c.JSON(http.StatusOK, gin.H{
-		"book_id":   book.ServerID,
-		"version":   book.Version,
-		"is_active": book.IsActive,
-		"items":     items,
-		"total":     len(items),
+		"book_id":       book.ServerID,
+		"version":       book.Version,
+		"is_active":     book.IsActive,
+		"items":         items,
+		"total":         total,
+		"page":          page,
+		"per_page":      perPage,
+		"search":        search,
+		"book_total":    bookRepo.CountBookItems(book.ID),
+		"lot_count":     bookRepo.CountDistinctLots(book.ID),
+		"primary_count": bookRepo.CountPrimaryItems(book.ID),
 	})
 }