Sends telemetry event when an issue is opened in web browser

(#3774, #3775)

Author: sergeibbb

docs/telemetry-events.md

@@ -1358,6 +1358,19 @@ void
 }
 ```
 
+### startWork/issue/action
+
+> Sent when the user takes an action on a StartWork issue
+
+```typescript
+{
+  'instance': number,
+  'type': 'branch' | 'branch-worktree' | 'issue' | 'issue-worktree',
+  'items.count': number,
+  'action': 'soft-open'
+}
+```
+
 ### startWork/issue/chosen
 
 > Sent when the user chooses an issue to start work in the second step

src/constants.telemetry.ts

@@ -324,6 +324,11 @@ export type TelemetryEvents = {
 		connected: boolean;
 		type: StartWorkType;
 	};
+	/** Sent when the user takes an action on a StartWork issue */
+	'startWork/issue/action': StartWorkEventData & {
+		action: 'soft-open';
+		connected: boolean;
+	} & Partial<Record<`item.${string}`, string | number | boolean>>;
 	/** Sent when the user chooses an issue to start work in the second step */
 	'startWork/issue/chosen': StartWorkEventData & {
 		connected: boolean;

src/plus/startWork/startWork.ts

@@ -507,6 +507,7 @@ export class StartWorkCommand extends QuickCommand<State> {
 				switch (button) {
 					case OpenOnGitHubQuickInputButton:
 					case OpenOnJiraQuickInputButton:
+						this.sendItemActionTelemetry('soft-open', item, state, context);
 						this.open(item);
 						return undefined;
 					default:
@@ -529,6 +530,35 @@ export class StartWorkCommand extends QuickCommand<State> {
 		void openUrl(item.item.issue.url);
 	}
 
+	private sendItemActionTelemetry(
+		action: 'soft-open',
+		item: StartWorkItem,
+		state: StepState<State>,
+		context: Context,
+	) {
+		this.container.telemetry.sendEvent(
+			'startWork/issue/action',
+			{
+				...context.telemetryContext!,
+				action: action,
+				connected: true,
+				type: state.type,
+				'item.id': getStartWorkItemIdHash(item),
+				'item.type': item.item.issue.type,
+				'item.provider': item.item.issue.provider.id,
+				'item.assignees.count': item.item.issue.assignees?.length ?? undefined,
+				'item.createdDate': item.item.issue.createdDate.getTime(),
+				'item.updatedDate': item.item.issue.updatedDate.getTime(),
+
+				'item.comments.count': item.item.issue.commentsCount ?? undefined,
+				'item.upvotes.count': item.item.issue.thumbsUpCount ?? undefined,
+
+				'item.issue.state': item.item.issue.state,
+			},
+			this.source,
+		);
+	}
+
 	private async getConnectedIntegrations(): Promise<Map<SupportedStartWorkIntegrationIds, boolean>> {
 		const connected = new Map<SupportedStartWorkIntegrationIds, boolean>();
 		await Promise.allSettled(