Replace host sensor with node agent sensing (#1916)

In this change I used both claude code and Antigravity.

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Signed-off-by: Bezalel Brandwine <bez@softwine.net>

core/pkg/hostsensorutils/hostsensorinterface.go

@@ -11,5 +11,4 @@ type IHostSensor interface {
 	Init(ctx context.Context) error
 	TearDown() error
 	CollectResources(context.Context) ([]hostsensor.HostSensorDataEnvelope, map[string]apis.StatusInfo, error)
-	GetNamespace() string
 }