Renamed sampled_at timestamps for states to origin_time

Signed-off-by: Tiyash Basu <[email protected]>

Author: tiyash-basu-frequenz

RELEASE_NOTES.md

@@ -33,6 +33,7 @@
 - Renamed field `ElectricalComponent.category_type` to `ElectricalComponent.category_specific_info` to better reflect its purpose.
 - Renamed `ElectricalComponentState` to `ElectricalComponentStateSnapshot` to better reflect its purpose.
 - Renamed `SensorState` to `SensorStateSnapshot` to better reflect its purpose.
+- Renamed `sampled_at` timestamps for state snapshots to `origin_time`.
 
 ## Bug Fixes
 

proto/frequenz/api/common/v1/microgrid/electrical_components/electrical_components.proto

@@ -476,7 +476,7 @@ message ElectricalComponentDiagnostic {
 // Representation of a component state, warnings, and errors.
 message ElectricalComponentStateSnapshot {
   // The time at which the state was sampled.
-  google.protobuf.Timestamp sampled_at = 1;
+  google.protobuf.Timestamp origin_time = 1;
 
 
   // List of operational states currently active for the component.

proto/frequenz/api/common/v1/microgrid/sensors/sensors.proto

@@ -170,7 +170,7 @@ message SensorDiagnostic {
 // Representation of a sensor state and errors.
 message SensorStateSnapshot {
   // The time at which the state was sampled.
-  google.protobuf.Timestamp sampled_at = 1;
+  google.protobuf.Timestamp origin_time = 1;
 
   // List of states of the microgrid sensor.
   //