feat: App API v2 (#10077)

# Which Problems Are Solved

This PR *partially* addresses #9450 . Specifically, it implements the
resource based API for the apps. APIs for app keys ARE not part of this
PR.

# How the Problems Are Solved

- `CreateApplication`, `PatchApplication` (update) and
`RegenerateClientSecret` endpoints are now unique for all app types:
API, SAML and OIDC apps.
  - All new endpoints have integration tests
  - All new endpoints are using permission checks V2

# Additional Changes

- The `ListApplications` endpoint allows to do sorting (see protobuf for
details) and filtering by app type (see protobuf).
- SAML and OIDC update endpoint can now receive requests for partial
updates

# Additional Context

Partially addresses #9450

internal/api/grpc/app/v2beta/server.go

@@ -0,0 +1,57 @@
+package app
+
+import (
+	"google.golang.org/grpc"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
+	"github.com/zitadel/zitadel/internal/api/grpc/server"
+	"github.com/zitadel/zitadel/internal/command"
+	"github.com/zitadel/zitadel/internal/config/systemdefaults"
+	"github.com/zitadel/zitadel/internal/domain"
+	"github.com/zitadel/zitadel/internal/query"
+	app "github.com/zitadel/zitadel/pkg/grpc/app/v2beta"
+)
+
+var _ app.AppServiceServer = (*Server)(nil)
+
+type Server struct {
+	app.UnimplementedAppServiceServer
+	command         *command.Commands
+	query           *query.Queries
+	systemDefaults  systemdefaults.SystemDefaults
+	checkPermission domain.PermissionCheck
+}
+
+type Config struct{}
+
+func CreateServer(
+	command *command.Commands,
+	query *query.Queries,
+	checkPermission domain.PermissionCheck,
+) *Server {
+	return &Server{
+		command:         command,
+		query:           query,
+		checkPermission: checkPermission,
+	}
+}
+
+func (s *Server) RegisterServer(grpcServer *grpc.Server) {
+	app.RegisterAppServiceServer(grpcServer, s)
+}
+
+func (s *Server) AppName() string {
+	return app.AppService_ServiceDesc.ServiceName
+}
+
+func (s *Server) MethodPrefix() string {
+	return app.AppService_ServiceDesc.ServiceName
+}
+
+func (s *Server) AuthMethods() authz.MethodMapping {
+	return app.AppService_AuthMethods
+}
+
+func (s *Server) RegisterGateway() server.RegisterGatewayFunc {
+	return app.RegisterAppServiceHandler
+}