Networks refactor

[Padraic-O-Mhuiris]

No description provided.

[bussyjd]

• EnvVar struct naming is a bit confusing..maybe TemplateField

• Either enforce single-word network names or always require the slash separator and make the network name parsing a helper (used twice).

• extractTemplateFields() needs to return deterministic sorting

• We don't have network list --installed or similar?

• Missing Validation on Template Execution - If a user provides a malformed value that breaks YAML syntax, the error occurs later during helmfile sync rather than at install time:

  if err := tmpl.Execute(&buf, templateData); err != nil {
      return fmt.Errorf("failed to execute values template: %w", err)
  }
  // No YAML validation of buf.Bytes() before writing

• In values.yaml.gotmpl:

  @default Annotation Ambiguity - In values.yaml.gotmpl:

  # @default
  # @description Deployment identifier...
  id: {{.Id}}

The @default annotation with no value means "has a default" but the actual default comes from petname generation in Go code.

• Needs user confirmation for network confirmation:
  eg: "Are you sure you want to delete ethereum-prod?"

• Do we want to keep the helmfile.yaml.gotmpl in the deployment directory after install?