Enforce pricelist write checks and auto-restart on DB settings change

internal/handlers/pricelist.go

@@ -87,6 +87,15 @@ func (h *PricelistHandler) Get(c *gin.Context) {
 
 // Create creates a new pricelist from current prices
 func (h *PricelistHandler) Create(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
 	// Get the database username as the creator
 	createdBy := h.localDB.GetDBUser()
 	if createdBy == "" {
@@ -104,6 +113,15 @@ func (h *PricelistHandler) Create(c *gin.Context) {
 
 // Delete deletes a pricelist by ID
 func (h *PricelistHandler) Delete(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
 	idStr := c.Param("id")
 	id, err := strconv.ParseUint(idStr, 10, 32)
 	if err != nil {