feat(config): add Scaffolding.Boards typed input with 6 defaults

internal/config/config.go

@@ -61,6 +61,16 @@ type RenodeConfig struct {
 	Platforms    []RenodePlatform `yaml:"platforms"`
 }
 
+type Board struct {
+	Name     string `yaml:"name"`
+	FQBN     string `yaml:"fqbn"`
+	Template string `yaml:"template"`
+}
+
+type Scaffolding struct {
+	Boards []Board `yaml:"boards"`
+}
+
 // Config is the fully-resolved runtime configuration.
 type Config struct {
 	Version         int                `yaml:"version"`
@@ -76,6 +86,7 @@ type Config struct {
 	ShellConfig     ShellConfigSection `yaml:"shell_config"`
 	Neovim          NeovimConfig       `yaml:"neovim"`
 	Renode          RenodeConfig       `yaml:"renode"`
+	Scaffolding     Scaffolding        `yaml:"scaffolding"`
 }
 
 const currentVersion = 1
@@ -161,5 +172,8 @@ func merge(base, over Config) Config {
 	if over.Renode.WokwiVersion != "" || len(over.Renode.Platforms) > 0 {
 		out.Renode = over.Renode
 	}
+	if len(over.Scaffolding.Boards) > 0 {
+		out.Scaffolding = over.Scaffolding
+	}
 	return out
 }