Implement async manual CSV ingest, unified UI pagination/filters, and serial placeholder strategy

internal/domain/registry.go

@@ -2,16 +2,8 @@ package domain
 
 import "time"
 
-type Project struct {
-	ID        string    `json:"id"`
-	Name      string    `json:"name"`
-	CreatedAt time.Time `json:"created_at"`
-	UpdatedAt time.Time `json:"updated_at"`
-}
-
 type Machine struct {
 	ID           string    `json:"id"`
-	ProjectID    string    `json:"project_id"`
 	Name         string    `json:"name"`
 	Vendor       *string   `json:"vendor,omitempty"`
 	Model        *string   `json:"model,omitempty"`