Fix NX containerized build errors

Add CI environment variables to prevent NX project graph failures:
- CI=true: Disables interactive features
- NX_DAEMON=false: Prevents daemon issues in containers
- NX_CACHE_PROJECT_GRAPH=false: Disables problematic caching

Resolves 'Cannot read properties of undefined (reading split)'
errors in frontend build, storybook, and plugin builds.

pkg/build/daggerbuild/frontend/build.go

@@ -8,6 +8,9 @@ import (
 
 func Build(builder *dagger.Container, version string) *dagger.Directory {
 	public := builder.
+		WithEnvVariable("CI", "true").
+		WithEnvVariable("NX_DAEMON", "false").
+		WithEnvVariable("NX_CACHE_PROJECT_GRAPH", "false").
 		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("yarn lerna version %s --exact --no-git-tag-version --no-push --force-publish -y", version)}).
 		WithExec([]string{"yarn", "run", "build"}).
 		WithExec([]string{"/bin/sh", "-c", "find /src/public -type d -name node_modules -print0 | xargs -0 rm -rf"}).
@@ -18,6 +21,9 @@ func Build(builder *dagger.Container, version string) *dagger.Directory {
 
 func BuildPlugins(builder *dagger.Container) *dagger.Directory {
 	public := builder.
+		WithEnvVariable("CI", "true").
+		WithEnvVariable("NX_DAEMON", "false").
+		WithEnvVariable("NX_CACHE_PROJECT_GRAPH", "false").
 		WithExec([]string{"yarn", "install", "--immutable"}).
 		WithExec([]string{"/bin/sh", "-c", `if [ -d /src/plugins-bundled ]; then yarn run plugins:build-bundled; else mkdir /src/plugins-bundled; fi`}).
 		WithExec([]string{"/bin/sh", "-c", "find /src/plugins-bundled -type d -name node_modules -print0 | xargs -0 rm -rf"}).

pkg/build/daggerbuild/frontend/storybook.go

@@ -5,6 +5,9 @@ import "dagger.io/dagger"
 // Storybook returns a dagger.Directory which contains the built storybook server.
 func Storybook(builder *dagger.Container, src *dagger.Directory, version string) *dagger.Directory {
 	return builder.
+		WithEnvVariable("CI", "true").
+		WithEnvVariable("NX_DAEMON", "false").
+		WithEnvVariable("NX_CACHE_PROJECT_GRAPH", "false").
 		WithExec([]string{"yarn", "run", "storybook:build"}).
 		Directory("./packages/grafana-ui/dist/storybook")
 }