[refactor] Return start and end timestamps from FindTraceIDs in v2 re…

…mote storage api (#6772)

## Which problem is this PR solving?
- Towards #6629

## Description of the changes
- This is a copy of #6770
but for the v2 remote storage API

## How was this change tested?
- CI

## Checklist
- [x] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [x] I have signed all commits
- [x] I have added unit tests for the new functionality
- [x] I have run lint and test steps successfully
  - for `jaeger`: `make lint test`
  - for `jaeger-ui`: `npm run lint` and `npm run test`

---------

Signed-off-by: Mahad Zaryab <[email protected]>

internal/storage/v2/grpc/trace_storage.proto

@@ -64,7 +64,7 @@ message GetOperationsResponse {
   repeated Operation operations = 1;
 }
 
-// TraceQueryParameters contains query paramters to find traces. For a detailed
+// TraceQueryParameters contains query parameters to find traces. For a detailed
 // definition of each field in this message, refer to `TraceQueryParameters` in `jaeger.api_v3`
 // (https://github.com/jaegertracing/jaeger-idl/blob/main/proto/api_v3/query_service.proto).
 message TraceQueryParameters {
@@ -97,9 +97,29 @@ message FindTracesRequest {
   TraceQueryParameters query = 1;
 }
 
+
+// FoundTraceID is a wrapper around trace ID returned from FindTraceIDs
+// with an optional time range that may be used in GetTraces calls.
+//
+// The time range is provided as an optimization hint for some storage backends
+// that can perform more efficient queries when they know the approximate time range.
+// The value should not be used for precise time-based filtering or assumptions.
+// It is meant as a rough boundary and may not be populated in all cases.
+message FoundTraceID {
+  bytes trace_id = 1;
+  google.protobuf.Timestamp start = 2 [
+    (gogoproto.stdtime) = true,
+    (gogoproto.nullable) = false
+  ];
+  google.protobuf.Timestamp end = 3 [
+    (gogoproto.stdtime) = true,
+    (gogoproto.nullable) = false
+  ];
+}
+
 // FindTraceIDsResponse represents the response for FindTracesRequest.
 message FindTraceIDsResponse {
-  repeated bytes trace_ids = 1;
+  repeated FoundTraceID trace_ids = 1;
 }
 
 // TraceReader is a service that allows reading traces from storage.