docs: update server/v2 api contract (#22815)

runtime/v2/config.go

@@ -35,7 +35,7 @@ func ProvideModuleConfigMaps(
 			fetchFlag := flag
 			// splitting on "." is required to handle nested flags which are defined
 			// in other modules that are not the current module
-			// for example: "server.minimum-gas-prices" is defined in the server module
+			// for example: "server.minimum-gas-prices" is defined in the server component
 			// but required by x/validate
 			for _, part := range strings.Split(flag, ".") {
 				if maybeMap, ok := m[part]; ok {

server/v2/server.go

@@ -16,45 +16,49 @@ import (
 	"cosmossdk.io/log"
 )
 
-// ServerComponent is a server module that can be started and stopped.
+// ServerComponent is a server component that can be started and stopped.
 type ServerComponent[T transaction.Tx] interface {
+	// Name returns the name of the server component.
 	Name() string
 
+	// Start starts the server component.
 	Start(context.Context) error
+	// Stop stops the server component.
+	// Once Stop has been called on a server component, it may not be reused.
 	Stop(context.Context) error
 }
 
-// HasStartFlags is a server module that has start flags.
+// HasStartFlags is a server component that has start flags.
 type HasStartFlags interface {
 	// StartCmdFlags returns server start flags.
 	// Those flags should be prefixed with the server name.
 	// They are then merged with the server config in one viper instance.
 	StartCmdFlags() *pflag.FlagSet
 }
 
-// HasConfig is a server module that has a config.
+// HasConfig is a server component that has a config.
 type HasConfig interface {
 	Config() any
 }
 
-// ConfigWriter is a server module that can write its config to a file.
+// ConfigWriter is a server component that can write its config to a file.
 type ConfigWriter interface {
 	WriteConfig(path string) error
 }
 
-// HasCLICommands is a server module that has CLI commands.
+// HasCLICommands is a server component that has CLI commands.
 type HasCLICommands interface {
 	CLICommands() CLIConfig
 }
 
-// CLIConfig defines the CLI configuration for a module server.
+// CLIConfig defines the CLI configuration for a component server.
 type CLIConfig struct {
-	// Commands defines the main command of a module server.
+	// Commands defines the main command of a server component.
 	Commands []*cobra.Command
-	// Queries defines the query commands of a module server.
+	// Queries defines the query commands of a server component.
 	// Those commands are meant to be added in the root query command.
 	Queries []*cobra.Command
-	// Txs defines the tx commands of a module server.
+	// Txs defines the tx commands of a server component.
 	// Those commands are meant to be added in the root tx command.
 	Txs []*cobra.Command
 }