fix: add missing status and data fields to ToolStartedOrCompletedActivityPayload

The schema for tool.started and tool.completed activities was missing the
optional 'status' and 'data' fields that ToolUpdatedActivityPayload has.
When activities are decoded through Schema.decodeUnknownSync, these fields
were silently stripped, causing work log entries to lose command and
changed-file information from completion events.

Author: cursoragent

packages/contracts/src/orchestration.ts

@@ -362,7 +362,9 @@ const ContextCompactionActivityPayload = Schema.Struct({
 
 const ToolStartedOrCompletedActivityPayload = Schema.Struct({
   itemType: TrimmedNonEmptyString,
+  status: Schema.optional(TrimmedNonEmptyString),
   detail: Schema.optional(TrimmedNonEmptyString),
+  data: Schema.optional(CanonicalToolLifecycleData),
 });
 
 const ToolUpdatedActivityPayload = Schema.Struct({