Display Copilot CLI edits when resuming a session

[DonJayamanne]

For microsoft/vscode#270852
For microsoft/vscode-internalbacklog#5982

[Copilot]

Pull Request Overview

This PR refactors the Copilot CLI tool invocation formatting to improve message clarity and remove unused tracking code. The changes focus on enhancing user-facing messages for different editor commands and cleaning up technical debt.

Key Changes:

• Removed the toolNames Map tracking that was redundant since tool names are available directly from events
• Enhanced the StrReplaceEditor tool invocation formatter to provide more specific messages for different commands (view, edit, insert, create, undo)
• Improved consistency by changing "Read" to "Viewed" for file viewing operations

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
copilotcliToolInvocationFormatter.ts	Added comprehensive command-specific formatting for StrReplaceEditor tool; removed redundant toolNames tracking and isCopilotCliEditToolCall filtering in createCopilotCLIToolInvocation
copilotcliToolInvocationFormatter.spec.ts	Updated tests to reflect removal of toolNames parameter and changed assertion from "Read" to "Viewed"
copilotcliSession.ts	Added isCopilotCliEditToolCall import; introduced typo in log message; removed _toolNames usage but left field declaration
copilotcliSessionService.ts	Refactored session manager initialization to use Lazy<Promise> for better lazy loading pattern

Comments suppressed due to low confidence (2)

src/extension/agents/copilotcli/node/copilotcliSession.ts:173

• The _toolNames field is declared but no longer used after removing its usage on lines 184 and 213. This field should be removed as it's now dead code.

	private _toolNames = new Map<string, string>();

src/extension/agents/copilotcli/node/copilotcliSession.ts:213

• This line attempts to use _toolNames.get() which is no longer populated (the .set() call was removed). This will always return undefined, making toolName always default to ''. Use event.data.toolName directly instead, similar to the fix on line 203.

				const toolName = this._toolNames.get(event.data.toolCallId) || '<unknown>';