Сonfig v2 - #57

issues found

cannot use m.migrateHandlers(m.src.Handlers, &dst, m.src.Server.Cache) (value of type *"github.com/ozontech/seq-ui/internal/app/config/v2".Handlers) as "github.com/ozontech/seq-ui/internal/app/config/v2".Handlers value in assignment (typecheck)

cannot use m.migrateClients(m.src) (value of type *"github.com/ozontech/seq-ui/internal/app/config/v2".Clients) as "github.com/ozontech/seq-ui/internal/app/config/v2".Clients value in assignment

cannot use m.migrateCache(m.src.Server) (value of type *"github.com/ozontech/seq-ui/internal/app/config/v2".Cache) as "github.com/ozontech/seq-ui/internal/app/config/v2".Cache value in assignment

cannot use m.migrateServer(m.src.Server) (value of type *"github.com/ozontech/seq-ui/internal/app/config/v2".Server) as "github.com/ozontech/seq-ui/internal/app/config/v2".Server value in assignment

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/setup-go@v5, golangci/golangci-lint-action@v8. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/