// Package web embeds the compiled control-room SPA (web/dist) into the oikos
// binary, preserving the single-binary deployment (ADR-0001). The dist tree is
// produced by `npm run build` (or the Docker ui-builder stage); a committed
// web/dist/.gitkeep keeps a backend-only `go build` green when the UI has not
// been built.
package web

import (
	"embed"
	"io/fs"
)

//go:embed all:dist
var dist embed.FS

// DistFS returns the built SPA rooted at dist/. When the UI has not been built
// (only the .gitkeep placeholder is present), Open("index.html") will fail and
// the caller serves a 404 — the binary still starts.
func DistFS() (fs.FS, error) {
	return fs.Sub(dist, "dist")
}