Add Apply Suggestion commands to Comments view context menu (#8409)

* Initial plan

* Initial progress report: Plan to add Apply Suggestion with Copilot to Comments view

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

* Add Apply Suggestion commands to Comments view context menu

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

* Fix command

* Always show "with copilot"

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

Author: Copilot

package.json

@@ -3100,6 +3100,11 @@
 					"command": "pr.unresolveReviewThreadFromView",
 					"group": "context@1",
 					"when": "commentController =~ /^github-(browse|review)/ && commentThread =~ /canUnresolve/"
+				},
+				{
+					"command": "pr.applySuggestionWithCopilot",
+					"group": "context@2",
+					"when": "commentController =~ /^github-review/"
 				}
 			],
 			"editor/title": [
@@ -3256,7 +3261,7 @@
 				},
 				{
 					"command": "pr.applySuggestionWithCopilot",
-					"when": "commentController =~ /^github-review/ && !(comment =~ /hasSuggestion/)"
+					"when": "commentController =~ /^github-review/"
 				}
 			],
 			"comments/comment/title": [
@@ -3268,7 +3273,7 @@
 				{
 					"command": "pr.applySuggestionWithCopilot",
 					"group": "overflow@0",
-					"when": "commentController =~ /^github-review/ && !(comment =~ /hasSuggestion/)"
+					"when": "commentController =~ /^github-review/"
 				},
 				{
 					"command": "pr.editComment",

src/@types/vscode.proposed.chatParticipantAdditions.d.ts

@@ -171,8 +171,8 @@ declare module 'vscode' {
 		pastTenseMessage?: string | MarkdownString;
 		isConfirmed?: boolean;
 		isComplete?: boolean;
-		toolSpecificData?: ChatTerminalToolInvocationData | ChatMcpToolInvocationData;
-		subAgentInvocationId?: string;
+		toolSpecificData?: ChatTerminalToolInvocationData;
+		fromSubAgent?: boolean;
 		presentation?: 'hidden' | 'hiddenAfterComplete' | undefined;
 
 		constructor(toolName: string, toolCallId: string, isError?: boolean);
@@ -244,7 +244,7 @@ declare module 'vscode' {
 		constructor(uris: Uri[], callback: () => Thenable<unknown>);
 	}
 
-	export type ExtendedChatResponsePart = ChatResponsePart | ChatResponseTextEditPart | ChatResponseNotebookEditPart | ChatResponseWorkspaceEditPart | ChatResponseConfirmationPart | ChatResponseCodeCitationPart | ChatResponseReferencePart2 | ChatResponseMovePart | ChatResponseExtensionsPart | ChatResponsePullRequestPart | ChatToolInvocationPart | ChatResponseMultiDiffPart | ChatResponseThinkingProgressPart | ChatResponseExternalEditPart;
+	export type ExtendedChatResponsePart = ChatResponsePart | ChatResponseTextEditPart | ChatResponseNotebookEditPart | ChatResponseConfirmationPart | ChatResponseCodeCitationPart | ChatResponseReferencePart2 | ChatResponseMovePart | ChatResponseExtensionsPart | ChatResponsePullRequestPart | ChatPrepareToolInvocationPart | ChatToolInvocationPart | ChatResponseMultiDiffPart | ChatResponseThinkingProgressPart | ChatResponseExternalEditPart;
 	export class ChatResponseWarningPart {
 		value: MarkdownString;
 		constructor(value: string | MarkdownString);

src/commands.ts

@@ -1768,20 +1768,30 @@ ${contents}
 			}
 		}));
 	context.subscriptions.push(
-		vscode.commands.registerCommand('pr.applySuggestionWithCopilot', async (comment: GHPRComment) => {
+		vscode.commands.registerCommand('pr.applySuggestionWithCopilot', async (comment: GHPRComment | GHPRCommentThread) => {
 			/* __GDPR__
 				"pr.applySuggestionWithCopilot" : {}
 			*/
 			telemetry.sendTelemetryEvent('pr.applySuggestionWithCopilot');
 
-			const commentThread = comment.parent;
+			const isThread = GHPRCommentThread.is(comment);
+			const commentThread = isThread ? comment : comment.parent;
+			const commentBody = isThread ? comment.comments[0].body : comment.body;
 			commentThread.collapsibleState = vscode.CommentThreadCollapsibleState.Collapsed;
-			const message = comment.body instanceof vscode.MarkdownString ? comment.body.value : comment.body;
-			await vscode.commands.executeCommand('vscode.editorChat.start', {
-				initialRange: commentThread.range,
-				message: message,
-				autoSend: true,
-			});
+			const message = commentBody instanceof vscode.MarkdownString ? commentBody.value : commentBody;
+
+			if (isThread) {
+				// For threads, open the Chat view instead of inline chat
+				await vscode.commands.executeCommand(commands.NEW_CHAT, { inputValue: message, isPartialQuery: true, agentMode: true });
+
+			} else {
+				// For single comments, use inline chat
+				await vscode.commands.executeCommand('vscode.editorChat.start', {
+					initialRange: commentThread.range,
+					message: message,
+					autoSend: true,
+				});
+			}
 		})
 	);
 	context.subscriptions.push(