feat: add MsgServiceRouter to Baseapp (and runtime's provideCodecs) (#12168)

## Description

This PR adds a way to provide through depinject BaseApp's MsgServiceRouter, required for `x/auth`. Ref: #12125



---

### Author Checklist

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please add links to any relevant follow up issues.*

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [x] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

baseapp/baseapp.go

@@ -198,6 +198,11 @@ func (app *BaseApp) Trace() bool {
 // MsgServiceRouter returns the MsgServiceRouter of a BaseApp.
 func (app *BaseApp) MsgServiceRouter() *MsgServiceRouter { return app.msgServiceRouter }
 
+// SetMsgServiceRouter sets the MsgServiceRouter of a BaseApp.
+func (app *BaseApp) SetMsgServiceRouter(msgServiceRouter *MsgServiceRouter) {
+	app.msgServiceRouter = msgServiceRouter
+}
+
 // MountStores mounts all IAVL or DB stores to the provided keys in the BaseApp
 // multistore.
 func (app *BaseApp) MountStores(keys ...storetypes.StoreKey) {

runtime/builder.go

@@ -25,12 +25,19 @@ func (a *AppBuilder) DefaultGenesis() map[string]json.RawMessage {
 }
 
 // Build builds an *App instance.
-func (a *AppBuilder) Build(logger log.Logger, db dbm.DB, traceStore io.Writer, baseAppOptions ...func(*baseapp.BaseApp)) *App {
+func (a *AppBuilder) Build(
+	logger log.Logger,
+	db dbm.DB,
+	traceStore io.Writer,
+	msgServiceRouter *baseapp.MsgServiceRouter,
+	baseAppOptions ...func(*baseapp.BaseApp),
+) *App {
 	for _, option := range a.app.baseAppOptions {
 		baseAppOptions = append(baseAppOptions, option)
 	}
 	// TODO: when the auth module is configured, fill-in txDecoder
 	bApp := baseapp.NewBaseApp(a.app.config.AppName, logger, db, nil, baseAppOptions...)
+	bApp.SetMsgServiceRouter(msgServiceRouter)
 	bApp.SetCommitMultiStoreTracer(traceStore)
 	bApp.SetVersion(version.Version)
 	bApp.SetInterfaceRegistry(a.app.interfaceRegistry)

runtime/module.go

@@ -44,6 +44,7 @@ func provideCodecs(moduleBasics map[string]AppModuleBasicWrapper) (
 	*codec.LegacyAmino,
 	appWrapper,
 	codec.ProtoCodecMarshaler,
+	*baseapp.MsgServiceRouter,
 ) {
 	interfaceRegistry := codectypes.NewInterfaceRegistry()
 	amino := codec.NewLegacyAmino()
@@ -67,7 +68,7 @@ func provideCodecs(moduleBasics map[string]AppModuleBasicWrapper) (
 		basicManager:      basicManager,
 	}
 
-	return interfaceRegistry, cdc, amino, app, cdc
+	return interfaceRegistry, cdc, amino, app, cdc, baseapp.NewMsgServiceRouter()
 }
 
 type appInputs struct {

simapp/app.go

@@ -213,6 +213,7 @@ func NewSimApp(
 	}
 
 	var appBuilder *runtime.AppBuilder
+	var msgServiceRouter *baseapp.MsgServiceRouter
 
 	err := depinject.Inject(AppConfig,
 		&appBuilder,
@@ -225,12 +226,13 @@ func NewSimApp(
 		&app.BankKeeper,
 		&app.FeeGrantKeeper,
 		&app.StakingKeeper,
+		&msgServiceRouter,
 	)
 	if err != nil {
 		panic(err)
 	}
 
-	app.App = appBuilder.Build(logger, db, traceStore, baseAppOptions...)
+	app.App = appBuilder.Build(logger, db, traceStore, msgServiceRouter, baseAppOptions...)
 
 	app.keys = sdk.NewKVStoreKeys(
 		minttypes.StoreKey, distrtypes.StoreKey,