Merge branch 'main' into feat/network-probes

Resolved conflict in internal/records/records.go:
- Upstream refactor moved deletion code to records_deletion.go and
  switched averaging functions from package-level globals to local
  variables (var row StatsRecord / params := make(dbx.Params, 1)).
- Kept AverageProbeStats and rewrote it to match the new local-variable
  pattern.
- Dropped duplicated deletion helpers from records.go (they now live in
  records_deletion.go).
- Added "network_probe_stats" to the collections list in
  records_deletion.go:deleteOldSystemStats so probe stats keep the same
  retention policy.

agent/battery/battery_linux.go

@@ -82,6 +82,9 @@ func GetBatteryStats() (batteryPercent uint8, batteryState uint8, err error) {
 		return batteryPercent, batteryState, errors.ErrUnsupported
 	}
 	paths, err := getBatteryPaths()
+	if err != nil {
+		return batteryPercent, batteryState, err
+	}
 	if len(paths) == 0 {
 		return batteryPercent, batteryState, errors.New("no batteries")
 	}

agent/client.go

@@ -20,6 +20,7 @@ import (
 	"github.com/fxamacker/cbor/v2"
 	"github.com/lxzan/gws"
 	"golang.org/x/crypto/ssh"
+	"golang.org/x/net/proxy"
 )
 
 const (
@@ -104,6 +105,11 @@ func (client *WebSocketClient) getOptions() *gws.ClientOption {
 	}
 	client.hubURL.Path = path.Join(client.hubURL.Path, "api/beszel/agent-connect")
 
+	// make sure BESZEL_AGENT_ALL_PROXY works (GWS only checks ALL_PROXY)
+	if val := os.Getenv("BESZEL_AGENT_ALL_PROXY"); val != "" {
+		os.Setenv("ALL_PROXY", val)
+	}
+
 	client.options = &gws.ClientOption{
 		Addr:      client.hubURL.String(),
 		TlsConfig: &tls.Config{InsecureSkipVerify: true},
@@ -112,6 +118,9 @@ func (client *WebSocketClient) getOptions() *gws.ClientOption {
 			"X-Token":    []string{client.token},
 			"X-Beszel":   []string{beszel.Version},
 		},
+		NewDialer: func() (gws.Dialer, error) {
+			return proxy.FromEnvironment(), nil
+		},
 	}
 	return client.options
 }