feat: add standalone controlplane support

internal/controlplane/local.go

@@ -0,0 +1,56 @@
+package controlplane
+
+import (
+	"context"
+
+	"github.com/cedar2025/xboard-node/internal/config"
+	"github.com/cedar2025/xboard-node/internal/model"
+)
+
+type LocalControlPlane struct {
+	cfg *config.Config
+}
+
+func NewLocalControlPlane(cfg *config.Config) *LocalControlPlane { return &LocalControlPlane{cfg: cfg} }
+func (l *LocalControlPlane) SupportsPolling() bool               { return false }
+func (l *LocalControlPlane) SupportsDiscovery() bool             { return false }
+func (l *LocalControlPlane) SupportsReporting() bool             { return false }
+func (l *LocalControlPlane) SupportsDeviceReports() bool         { return false }
+
+func (l *LocalControlPlane) Initial(ctx context.Context, _ func() map[string]interface{}, _ chan<- Event, _ chan<- StatusChange) (Bootstrap, error) {
+	select {
+	case <-ctx.Done():
+		return Bootstrap{}, ctx.Err()
+	default:
+	}
+	return Bootstrap{
+		PushInterval: l.cfg.Node.PushInterval,
+		PullInterval: l.cfg.Node.PullInterval,
+		Config:       model.NodeSpecFromStandalone(l.cfg),
+		Users:        model.UserSpecsFromStandalone(l.cfg),
+	}, nil
+}
+
+func (l *LocalControlPlane) Poll(ctx context.Context) (Snapshot, error) {
+	select {
+	case <-ctx.Done():
+		return Snapshot{}, ctx.Err()
+	default:
+		return Snapshot{}, nil
+	}
+}
+
+func (l *LocalControlPlane) Discover(ctx context.Context, _ func() map[string]interface{}, _ chan<- Event, _ chan<- StatusChange) (PushClient, error) {
+	select {
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	default:
+		return nil, nil
+	}
+}
+
+func (l *LocalControlPlane) Report(payload ReportPayload) error { _ = payload; return nil }
+func (l *LocalControlPlane) ReportDevices(push PushClient, devices map[int][]string) {
+	_, _ = push, devices
+}
+func (l *LocalControlPlane) Metrics() APIMetrics { return APIMetrics{} }